Mentch Decision from CA Supreme Court--regarding caretakers

 

 

IN THE SUPREME COURT OF CALIFORNIA 

 

 

 

THE PEOPLE, ) 

  ) 

 Plaintiff and Respondent, ) 

  ) S148204 

 v. ) 

  ) Ct.App. 6 H028783 

ROGER WILLIAM MENTCH, ) 

  ) Santa Cruz County 

 Defendant and Appellant. ) Super. Ct. No. 07429 

___________________________________) 

 

The Compassionate Use Act of 1996 (Act) (Health & Saf. Code, § 11362.5, 

added by voter initiative, Prop. 215, Gen. Elec. (Nov. 5, 1996)) provides partial 

immunity for the possession and cultivation of marijuana to two groups of people:  

qualified medical marijuana patients and their primary caregivers.  We consider 

here who may qualify as a primary caregiver.  We hold that a defendant whose 

caregiving consisted principally of supplying marijuana and instructing on its use, 

and who otherwise only sporadically took some patients to medical appointments, 

cannot qualify as a primary caregiver under the Act and was not entitled to an 

instruction on the primary caregiver affirmative defense.  We further conclude that 

nothing in the Legislature’s subsequent 2003 Medical Marijuana Program (Health 

& Saf. Code, § 11362.7 et seq.) alters this conclusion or offers any additional 

defense on this record.  Accordingly, we reverse the Court of Appeal. 

 

2 

FACTUAL AND PROCEDURAL BACKGROUND 

In 2003, Roger Mentch was arrested and charged with the cultivation of 

marijuana (Health & Saf. Code, § 11358)1 and its possession for sale (§ 11359).2 

Prosecution Evidence 

Heidi Roth, a teller at Monterey Bay Bank, testified that she became 

familiar with Mentch over the period of February to April 2003.  Mentch came to 

the bank on several occasions and made large deposits of cash in small bills, each 

deposit totaling over $2,000.  Roth noticed that some of the money Mentch 

deposited smelled so strongly of marijuana that the smell filled the bank, and the 

bank had to remove the money from circulation.  The total amount Mentch 

deposited with the bank over a two-month period was $10,750.  On April 15, 

2003, Roth filed a suspicious activity report with the Santa Cruz County Sheriff’s 

Office, relating the questionable nature of Mentch’s deposits. 

After further investigation, the sheriff’s office obtained a warrant to search 

Mentch’s house for marijuana.  On June 6, 2003, Mark Yanez, a narcotics 

investigator, and four deputies went to Mentch’s house to serve the warrant.  

When Mentch opened the door, Yanez told him they had a warrant to search his 

house for marijuana.  Mentch told Yanez that he had a medical recommendation 

for marijuana.  A search of Mentch’s person turned up $253 in cash and a small 

                                              

1 

 All further unlabeled statutory references are to the Health and Safety 

Code. 

2 

  Mentch was also charged with manufacturing and possessing concentrated 

cannabis (also known as hash oil) (§§ 11357, subd. (a), 11379.6, subd. (a)), 

possessing psilocybin mushrooms (§ 11377, subd. (a)), and firearm enhancements 

for the marijuana and hash oil counts (Pen. Code, § 12022, subd. (a)(1)), but these 

additional counts have no bearing on the issues in this appeal, and we do not 

address them further. 

 

3 

vial of hash oil, or concentrated cannabis.  Yanez advised Mentch of his rights and 

interviewed him in a police vehicle parked outside Mentch’s residence. 

Mentch told Yanez he had a medical marijuana recommendation for colitis, 

dysphoria, and depression, and that he smoked about four marijuana cigarettes, 

totaling approximately one-sixteenth of an ounce, per day for medicinal purposes.  

When Yanez asked Mentch if he sold marijuana, Mentch responded that he sold it 

to five medical marijuana users. 

A search of Mentch’s residence revealed several elaborate marijuana 

growing setups.  In various rooms of the house, the deputies found 82 marijuana 

plants in the flowering or budding stage, 57 “clone” marijuana plants, 

48 marijuana plants in the growing or vegetative stage, and three “mother” plants, 

which Yanez opined were likely the female plants from which clippings were 

taken to make the clone plants.  Considering the evidence seized from Mentch’s 

bank and residence, as well as his statement to Yanez, Yanez opined that while 

Mentch may have personally consumed some of the marijuana he grew, his 

operation was primarily a for-profit commercial venture. 

Defense Evidence 

Leland Besson testified that he had known Mentch for two years.  In 

June 2003, Besson was on disability and had a medical marijuana recommendation 

for a bad back, neck, and joints.  At the time, he was smoking approximately two 

to three grams of marijuana a day.  For about one year before Mentch was 

arrested, Besson purchased his marijuana exclusively from Mentch, who knew 

about Besson’s medical marijuana recommendation.  Mentch supplied medical 

marijuana through his business, the Hemporium.  Besson gave Mentch $150 to 

$200 in cash every month for one and one-half ounces of marijuana, the amount 

Besson usually consumed in a month. 

 

4 

Laura Eldridge testified she had known Mentch for about three years.  In 

June 2003, she was working as a caretaker for Besson, cooking and cleaning for 

him, driving him to the grocery store, and driving him to medical appointments 

and to pick up his medications.  Eldridge also drove Besson to Mentch’s house to 

get him his marijuana.  The only time Besson saw Mentch was when Eldridge 

took him to Mentch’s house to get marijuana. 

At the time, Eldridge herself had a medical marijuana recommendation for 

migraine headaches and posttraumatic stress disorder.  She was smoking about 

five or six marijuana cigarettes a day and consuming about one ounce of 

marijuana a month.  Eldridge obtained marijuana exclusively from Mentch for 

approximately one and one-half years before his arrest.  Mentch provided the 

marijuana through his medical marijuana business, the Hemporium.  Eldridge 

obtained the marijuana from Mentch every month, paying him $200 to $250 in 

cash for one ounce and $25 in cash for one-eighth of an ounce if she needed more. 

Eldridge was at Mentch’s house getting her daughter ready for school on 

the morning of Mentch’s arrest.  At the time, she and Mentch were not living 

together but were seeing each other romantically, and Eldridge had stayed over at 

Mentch’s house the night before the search warrant was served. 

Mentch took the stand in his own defense.  In 2002, he obtained a medical 

marijuana recommendation and began growing marijuana.  He learned how to 

grow marijuana from reading books, searching the Internet, and talking to people.  

He kept marijuana plants in all three stages of growth so that he was in a constant 

cycle of marijuana production, which produced a yield of four harvests a year.  

Mentch’s medical marijuana recommendation was still current on the day the 

police searched his home.  At that time, he smoked four to six marijuana cigarettes 

a day (approximately one-sixteenth of an ounce) and consumed between one and 

one-half to two ounces of marijuana a month. 

 

5 

Mentch opened the Hemporium, a caregiving and consultancy business, in 

March 2003.  The purpose of the Hemporium was to give people safe access to 

medical marijuana.  Mentch regularly provided marijuana to five other individuals, 

including Besson, Eldridge, and a man named Mike Manstock.  Sometimes he did 

not charge them.  All five individuals had valid medical marijuana 

recommendations.  Mentch did not provide marijuana to anyone who did not have 

a medical marijuana recommendation.  Occasionally, he took any extra marijuana 

he had to two different cannabis clubs, The Third Floor and another unnamed 

place.  Although a majority of the marijuana plants in Mentch’s home belonged to 

him, some belonged to Manstock.  In addition, Mentch let Besson and Eldridge 

grow one or two plants. 

Mentch provided marijuana to Besson about once every month and to 

Eldridge about once or twice every month.  On average, they each gave him $150 

to $200 for an ounce and a half of marijuana a month.  Mentch considered his 

marijuana “high-grade” and provided it to Besson and Eldridge for less than street 

value.  He used the money they paid him to pay for “nutrients, utilities, part of the 

rent.”  Mentch did not profit from his sales of marijuana, and sometimes he did not 

even recover his costs of growing it.  Mentch counseled his patients/customers 

about the best strains of marijuana to grow for their ailments and the cleanest way 

to use the marijuana.  He took a “couple of them” to medical appointments on a 

“sporadic” basis. 

Although Mentch asked all five patients to come to court and testify on his 

behalf, only Besson and Eldridge showed up.  He did not subpoena the others 

because one of them was out of state, another did not want to be involved because 

his father was an attorney, and the third did not want to testify. 

 

6 

The Primary Caregiver Defense 

Before trial, the prosecutor filed a motion in limine to exclude any 

references by counsel during voir dire, testimony, or closing argument to Mentch’s 

being a “primary caregiver” for Eldridge or Besson.3  The prosecutor asserted that 

Eldridge and Besson could testify to any care Mentch had provided them, but 

argued that the ultimate determination whether Mentch was a primary caregiver 

rested with the jury.  The trial court granted the motion. 

After Eldridge and Besson testified, the court concluded the evidence was 

insufficient to show that Mentch had provided primary caregiver services.  Mentch 

argued in a brief to the court that a person could qualify as a patient’s primary 

caregiver whenever he or she consistently assumed responsibility for a patient’s 

health by providing medical marijuana upon a doctor’s recommendation or 

approval.  The trial court rejected the argument. 

During the subsequent discussion of jury instructions after the close of 

evidence, Mentch requested the standard jury instruction for affirmative defenses 

under the Act (CALJIC No. 12.24.1) on the theory that he was both a qualified 

patient entitled to cultivate marijuana for himself and a primary caregiver entitled 

to cultivate marijuana and possess it for sale to others.  The trial court agreed to 

give the instruction insofar as it articulated a qualified patient defense but, 

consistent with its prior rulings, omitted the optional portion of the instruction 

relating to the primary caregiver defense.4 

                                              

3 

  The Act extends immunity from state prosecution for cultivation or 

possession for sale to both qualified patients and their designated “primary 

caregiver[s].”  (§ 11362.5, subd. (d).) 

4 

  At the time of trial, CALJIC No. 12.24.1 provided:  “The [possession] [or] 

[cultivation] [or] [transportation] of marijuana is not unlawful when the acts of 

[defendant] [a primary caregiver] are authorized by law for compassionate use.  

 

(footnote continued on next page) 

 

7 

The Jury’s Verdict and Subsequent Proceedings 

So instructed, the jury convicted Mentch of both cultivation and possession 

for sale.  (§§ 11358, 11359.)  The trial court suspended imposition of sentence and 

imposed three years’ probation. 

The Court of Appeal reversed Mentch’s convictions.  It concluded:  

“Where, as here, [Mentch] presented evidence that he not only grew medical 

marijuana for several qualified patients, but also counseled them on the best 

                                                                                                                                                              

(footnote continued from previous page) 

The [possession] [or] [cultivation] [or] [transportation] of marijuana is lawful 

(1) where its medical use is deemed appropriate and has been recommended or 

approved, orally or in writing, by a physician; (2) the physician has determined 

that the person’s health would benefit from the use of marijuana in the treatment 

of cancer, anorexia, AIDS, chronic pain, spasticity, glaucoma, arthritis, migraine, 

or any other illness for which marijuana provides relief; [and] (3) the marijuana 

[possessed] [cultivated] [transported] was for the personal medical use of [the 

patient] [_______] [.] [; and (4) the quantity of marijuana [[possessed] [or] 

[cultivated], and the form in which it was possessed were reasonably related to the 

[patient’s] [_______] then current medical needs [.]] [transported, and the method, 

timing and distance of the transportation were reasonably related to the [patient’s] 

[_______] then current medical needs.]  [¶] [A ‘primary caregiver’ is an 

individual designated by [the person exempted] [ (name) ] who has consistently 

assumed responsibility for the housing, health, or safety of that person.]  

[¶] [‘Recommendation’ and ‘approval’ have different meanings.  To ‘recommend’ 

something is to present it as worthy of acceptance or trial.  To ‘approve’ 

something is to express a favorable opinion of it.  The word ‘recommendation,’ as 

used in this instruction, suggests the physician has raised the issue of marijuana 

use and presented it to the patient as a treatment that would benefit the patient’s 

health by providing relief from an illness.  The word ‘approval,’ on the other, 

suggests the patient has raised the issue of marijuana use, and the physician has 

expressed a favorable opinion of marijuana use as a treatment for the patient.]  

[¶] To establish the defense of compassionate use, the burden is upon the 

defendant to raise a reasonable doubt as to guilt of the unlawful [possession] [or] 

[cultivation] [or] [transportation] of marijuana.”  (CALJIC No. 12.24.1 (2004 rev.) 

(7th ed. 2003), italics added.)  The italicized portions, governing the primary 

caregiver defense, were in dispute, and the trial court omitted them from its 

instructions. 

 

8 

varieties to grow and use for their ailments and accompanied them to medical 

appointments, albeit on a sporadic basis, there was enough evidence to present to 

the jury.”  Because there was sufficient evidence to support an instruction on the 

primary caregiver defense, the trial court erred by redacting all references to it in 

CALJIC No. 12.24.1.  (See People v. Michaels (2002) 28 Cal.4th 486, 529 

[defendant has a right to have the trial court give a jury instruction on any 

affirmative defense for which the record contains substantial evidence].) 

We granted review to address the meaning of “primary caregiver” under the 

Act. 

DISCUSSION 

I.   The Primary Caregiver Defense 

      A.   The Meaning of “Primary Caregiver” 

We interpret voter initiatives using the same principles that govern 

construction of legislative enactments.  (Professional Engineers in California 

Government v. Kempton (2007) 40 Cal.4th 1016, 1037.)  Thus, we begin with the 

text as the first and best indicator of intent.  (Ibid.; Elsner v. Uveges (2005) 34 

Cal.4th 915, 927.)  If the text is ambiguous and supports multiple interpretations, 

we may then turn to extrinsic sources such as ballot summaries and arguments for 

insight into the voters’ intent.  (Professional Engineers, at p. 1037; Legislature v. 

Eu (1991) 54 Cal.3d 492, 504; Legislature v. Deukmejian (1983) 34 Cal.3d 658, 

673, fn. 14.) 

Section 11362.5, subdivision (d) provides:  “Section 11357, relating to the 

possession of marijuana, and Section 11358, relating to the cultivation of 

marijuana, shall not apply to a patient, or to a patient’s primary caregiver, who 

possesses or cultivates marijuana for the personal medical purposes of the patient 

upon the written or oral recommendation or approval of a physician.”  In turn, 

section 11362.5, subdivision (e) defines “primary caregiver” as “the individual 

 

9 

designated by the person exempted under this section who has consistently 

assumed responsibility for the housing, health, or safety of that person.” 

This statutory definition has two parts:  (1) a primary caregiver must have 

been designated as such by the medicinal marijuana patient; and (2) he or she must 

be a person “who has consistently assumed responsibility for the housing, health, 

or safety of” the patient.  It is clear from the structure of subdivision (e) of section 

11362.5 that this latter part of the definition has additional restrictive power, or 

else the subdivision would have ended with the phrase “by the person exempted 

under this section,” thereby allowing every patient to designate one person without 

limitation.  Thus, to qualify for exemption under this subdivision, a person must 

satisfy both halves — the “designee” clause and the “responsibility” clause.  (See 

People v. Mower (2002) 28 Cal.4th 457, 475 [“For a person to be a qualified 

primary caregiver, he or she must be ‘designated’ as such by a qualified patient, 

and must have ‘consistently assumed responsibility’ for the qualified patient’s 

‘housing, health, or safety’ ” (italics added)].)  Designation is necessary, but not 

sufficient.  (People v. Urziceanu (2005) 132 Cal.App.4th 747, 773; People ex rel. 

Lungren v. Peron (1997) 59 Cal.App.4th 1383, 1397.) 

Three aspects of the structure of the responsibility clause are noteworthy.  

From these aspects, as we shall explain, we conclude a defendant asserting 

primary caregiver status must prove at a minimum that he or she (1) consistently 

provided caregiving, (2) independent of any assistance in taking medical 

marijuana, (3) at or before the time he or she assumed responsibility for assisting 

with medical marijuana. 

First, the text requires that the primary caregiver have “consistently” 

assumed responsibility for the patient’s care.  “Consistently” suggests an ongoing 

relationship marked by regular and repeated actions over time.  In People ex rel. 

Lungren v. Peron, supra, 59 Cal.App.4th 1383, for example, the many customers 

 

10 

of a marijuana club, the Cannabis Buyers’ Club, executed pro forma designations 

of the club as their primary caregiver.  The Court of Appeal correctly rejected the 

assertion that the buyers’ club could qualify as a primary caregiver in these 

circumstances:  “A person purchasing marijuana for medicinal purposes cannot 

simply designate seriatim, and on an ad hoc basis, drug dealers on street corners 

and sales centers such as the Cannabis Buyers’ Club as the patient’s ‘primary 

caregiver.’  The primary caregiver the patient designates must be one ‘who has 

consistently assumed responsibility for the housing, health, or safety of [the 

patient].’ ”  (Id. at p. 1396.)  One must consistently — “with persistent uniformity” 

(3 Oxford English Dict. (2d ed. 1989) p. 773) or “in a persistent or even manner” 

(Webster’s 3d New Internat. Dict. (2002) p. 484) — have assumed responsibility 

for a patient’s housing, health, or safety, or some combination of the three. 

Second, the definition of a primary caregiver is written using a past 

participle — “has consistently assumed.”  (§ 11362.5, subd. (e).)  This reinforces 

the inference arising from the use of the word “consistently” that primary 

caregiver status requires an existing, established relationship.  In some situations, 

the formation of a bona fide caregiving relationship and the onset of assistance in 

taking medical marijuana may be contemporaneous, as with a cancer patient 

entering chemotherapy who has a recommendation for medical marijuana use and 

has a live-in or home-visit nurse to assist with all aspects of his or her health care, 

including marijuana consumption.  (See § 11362.7, subd. (d)(1) [primary caregiver 

may include employees of hospice or home health agency].)  Even in this scenario, 

however, the caregiving relationship will arise at or before the onset of assistance 

in the administration of marijuana.  What is not permitted is for an individual to 

establish an after-the-fact caregiving relationship in an effort to thereby immunize 

from prosecution previous cultivation or possession for sale.  (Cf. People v. Rigo 

 

11 

(1999) 69 Cal.App.4th 409, 412-415 [doctor may not give postarrest 

recommendation to bless prior use].) 

Third, from these two aspects of the text, as well as logic, we draw a further 

inference:  a primary caregiver must establish he or she satisfies the responsibility 

clause based on evidence independent of the administration of medical marijuana.  

Under the Act, a primary caregiver relationship is a necessary antecedent, a 

predicate for being permitted under state law to possess or cultivate medical 

marijuana.  The possession or cultivation of marijuana for medical purposes 

cannot serve as the basis for making lawful the possession or cultivation of 

marijuana for medical purposes; to conclude otherwise would rest the primary 

caregiver defense on an entirely circular footing. 

We thus agree with the Court of Appeal in People v. Frazier (2005) 128 

Cal.App.4th 807, 823, which rejected the argument that “a ‘primary caregiver’ is a 

person who ‘consistently grows and supplies physician approved marijuana for a 

medical marijuana patient to serve the health needs of that patient.’ ”  The Frazier 

court concluded that, while if one were already qualified as a primary caregiver 

one could consistently grow and supply medical marijuana to a patient, the 

consistent growth and supply of medical marijuana would not by itself place one 

in the class of primary caregivers.  (Ibid.; see also People v. Windus (2008) 165 

Cal.App.4th 634, 644 [“Case law is clear that one who merely supplies a patient 

with marijuana has no defense under the [Act]”].)5 

                                              

5 

  Mentch directs us to the Attorney General’s Compassionate Use Act 

guidelines concerning medical marijuana (see § 11362.81, subd. (d)) as supporting 

a contrary definition of “primary caregiver,” but in fact the guidelines are wholly 

consistent with case law and the statutory text and afford Mentch no support.  The 

guidelines note:  “Although a ‘primary caregiver who consistently grows and 

supplies . . . medicinal marijuana for a section 11362.5 patient is serving a health 

 

(footnote continued on next page) 

 

12 

The trial court accurately assessed the law when, in denying Mentch’s 

request for a primary caregiver instruction, it explained:  “I’m satisfied that simply 

providing marijuana, in and of itself to these folks does not — you don’t bootstrap 

yourself to becoming the primary caregiver because you’re providing [marijuana]” 

and “you have to be a caregiver before you can provide the marijuana.”  (Italics 

added.)  Later, in denying Mentch’s motion for a judgment of acquittal (Pen. 

Code, § 1118.1), the trial court reiterated the point:  “There has to be something 

more to be a caregiver than simply providing marijuana.  Otherwise, there would 

be no reason to have the definition of a caregiver, because anybody who would be 

providing marijuana and related services would qualify as a caregiver[,] therefore 

giving them a defense to the very activity that’s otherwise illegal, and I don’t think 

that makes any sense in terms of statutory construction, nor do I think it was 

intended by the people or the Legislature.” 

Mentch himself highlights the dog-chasing-its-tail absurdity of allowing the 

administration of medical marijuana to patients to form the basis for authorizing 

the administration of medical marijuana to patients in his attempts to distinguish 

this case from People ex rel. Lungren v. Peron, supra, 59 Cal.App.4th 1383, and 

People v. Urziceanu, supra, 132 Cal.App.4th 747.  Peron and Urziceanu, he 

argues, involved only casual or occasional provision of medical marijuana; here, 

in contrast, he “consistently” provided medical marijuana, “consistently” allowed 

                                                                                                                                                              

(footnote continued from previous page) 

need of the patient,’ someone who merely maintains a source of marijuana does 

not automatically become the party ‘who has consistently assumed responsibility 

for the housing, health, or safety’ of that purchaser.”  (Cal. Atty. Gen., Guidelines 

for the Security and Non-diversion of Marijuana Grown for Medical Use (Aug. 

2008) pt. II.B., p. 4.)  They do not suggest provision of medical marijuana is alone 

sufficient to qualify one as a primary caregiver, but recognize instead that the 

provision of marijuana may be one part of caregiving for an ailing patient. 

 

13 

his patients to cultivate medical marijuana at his house, and was his five patients’ 

“exclusive source” for medical marijuana.  The essence of this argument is that the 

occasional provision of marijuana to someone is illegal, but the frequent provision 

of marijuana to that same person may be lawful.  The vice in the approach of the 

cooperatives at issue in Peron and Urziceanu therefore evidently was not that they 

provided marijuana to their customers; it was that they did not do it enough. 

Nothing in the text or in the supporting ballot arguments suggests this is 

what the voters intended.  The words the statute uses — housing, health, safety — 

imply a caretaking relationship directed at the core survival needs of a seriously ill 

patient, not just one single pharmaceutical need.  The ballot arguments in support 

suggest a patient is generally personally responsible for noncommercially 

supplying his or her own marijuana:  “Proposition 215 allows patients to cultivate 

their own marijuana simply because federal laws prevent the sale of marijuana, 

and a state initiative cannot overrule those laws.”  (Ballot Pamp., Gen. Elec. 

(Nov. 5, 1996) argument in favor of Prop. 215, p. 60.)  But as the focus is on the 

“seriously and terminally ill” (ibid.), logically the Act must offer some alternative 

for those unable to act in their own behalf; accordingly, the Act allows “ ‘primary 

caregiver[s]’ the same authority to act on behalf of those too ill or bedridden to do 

so” (People ex rel. Lungren v. Peron, supra, 59 Cal.App.4th at p. 1394).  To 

exercise that authority, however, one must be a “primary” — principal, lead, 

central — “caregiver” — one responsible for rendering assistance in the provision 

of daily life necessities — for a qualifying seriously or terminally ill patient.6 

                                              

6 

 The Act is a narrow measure with narrow ends.  As we acknowledged only 

months ago, “ ‘the proponents’ ballot arguments reveal a delicate tightrope walk 

designed to induce voter approval, which we would upset were we to stretch the 

proposition’s limited immunity to cover that which its language does not.’ ”  (Ross 

v. Ragingwire (2008) 42 Cal.4th 920, 930, quoting People v. Galambos (2002) 

 

(footnote continued on next page) 

 

14 

We note in passing that some other states in adopting their own medical 

marijuana compassionate use acts have adopted substantially different and 

manifestly broader language in defining their primary caregiver exceptions.  In 

New Mexico, for example, a primary caregiver is “a resident of New Mexico who 

is at least eighteen years of age and who has been designated by the patient’s 

practitioner as being necessary to take responsibility for managing the well-being 

of a qualified patient with respect to the medical use of cannabis.”  (N.M. Stat. 

§ 26-2B-3, par. F; see also Vt. Stat. Ann. tit. 18, § 4472, subd. (6) [registered 

caregiver must be 21, must have no drug convictions, and must have “agreed to 

undertake responsibility for managing the well-being of a registered patient with 

respect to the use of marijuana for symptom relief”].)  Had the drafters of the Act 

intended the broad understanding of “primary caregiver” that Mentch urges, they 

might well have been expected to select similar language.  They did not.7 

                                                                                                                                                              

(footnote continued from previous page) 

104 Cal.App.4th 1147, 1152.)  The Act’s drafters took pains to note that “neither 

relaxation much less evisceration of the state’s marijuana laws was envisioned.”  

(People v. Trippet (1997) 56 Cal.App.4th 1532, 1546; see also People v. 

Urziceanu, supra, 132 Cal.App.4th at pp. 772-773 [the Act “is a narrowly drafted 

statute,” not an attempt to “decriminalize marijuana on a wholesale basis”].)  We 

must interpret the text with those constraints in mind. 

7 

  More generally, we note that in the 12 states to have adopted 

compassionate use acts, all such states’ acts include a primary caregiver exception 

or its equivalent, and virtually all include some mechanism for limiting primary 

caregiver status so the exception does not swallow the rule.  Most rely on either 

mandatory state registries (Alaska Stat. § 17.37.010, subds. (a), (q) [Alaska]; 

Mont. Code Ann. § 50-46-201 [Montana]; N.M. Stat. § 26-2B-4, par. D [New 

Mexico]) or confine each caregiver to a set number of patients (Wn. Rev. Code 

§ 69.51A.010 (1)(d) [Washington]) or both (Haw. Rev. Stat. § 329-123, subd. (c) 

[Hawaii]; R.I. Gen. Laws §§ 21-28.6-3, subd. (6), 21-28.6-4, subd. (c) [Rhode 

Island]; Vt. Stat. Ann. tit. 18, § 4474, subds. (a), (c) [Vermont]).   

 A minority (Colorado, Nevada, and Oregon) have instead adopted 

California’s approach of limiting the caregiver exception by using a higher 

 

(footnote continued on next page) 

 

15 

We have no doubt our interpretation of the statute will pose no obstacle for 

those bona fide primary caregivers whose ministrations to their patients the Act 

was actually intended to shield from prosecution.  The spouse or domestic partner 

caring for his or her ailing companion, the child caring for his or her ailing parent, 

the hospice nurse caring for his or her ailing patient — each can point to the many 

ways in which they, medical marijuana aside, attend to and assume responsibility 

for the core survival needs of their dependents.  The Act allows them, insofar as 

state criminal law is concerned, to add the provision of marijuana, where 

medically recommended or approved, as one more arrow in their caregiving 

quiver.  It simply does not provide similar protection where the provision of 

marijuana is itself the substance of the relationship. 

B.   Sufficiency of the Evidence to Support an Instruction on the 

Primary Caregiver Affirmative Defense 

We turn to the merits of Mentch’s request for a primary caregiver 

instruction in light of the evidence he adduced and the evidence he sought to 

adduce. 

“It is well settled that a defendant has a right to have the trial court . . . give 

a jury instruction on any affirmative defense for which the record contains 

substantial evidence [citation] — evidence sufficient for a reasonable jury to find 

                                                                                                                                                              

(footnote continued from previous page) 

standard for the nature of the relationship and responsibility assumed.  (See Colo. 

Const., art. XVIII, § 14, subd. (1)(f) [must have “significant responsibility for 

managing the well-being of a patient who has a debilitating medical condition”]; 

Nev. Rev. Stat. § 453A.080, subsec. 1(b) [must have “significant responsibility for 

managing the well-being of a person diagnosed with a chronic or debilitating 

medical condition”]; Or. Rev. Stat. § 475.302, subsec. (5) [must have “significant 

responsibility for managing the well-being of a person who has been diagnosed 

with a debilitating medical condition”].) 

 

16 

in favor of the defendant [citation] — unless the defense is inconsistent with the 

defendant’s theory of the case [citation].  In determining whether the evidence is 

sufficient to warrant a jury instruction, the trial court does not determine the 

credibility of the defense evidence, but only whether ‘there was evidence which, if 

believed by the jury, was sufficient to raise a reasonable doubt . . . .’  [Citations.]”  

(People v. Salas (2006) 37 Cal.4th 967, 982-983; see also People v. Michaels

supra, 28 Cal.4th at p. 529.)  On appeal, we likewise ask only whether the 

requested instruction was supported by substantial evidence — evidence that, if 

believed by a rational jury, would have raised a reasonable doubt as to whether 

Mentch was a primary caregiver and thus innocent of unlawful possession or 

cultivation. 

Mentch relies on three strands of evidence:  his alleged provision of shelter 

to one patient, his taking of other patients to medical appointments, and his 

ongoing provision of both marijuana and marijuana advice and counseling to all 

his patients.  Even crediting this evidence, as we must for purposes of deciding 

whether he was entitled to an instruction, we discern a series of interrelated 

shortcomings.  Some of Mentch’s caregiving was independent of providing 

marijuana, but was not provided at or before the time he began providing 

marijuana.  Some of it may have been at or before the time he began providing 

marijuana, but was not consistent.  And some of it was consistent, but was not 

independent of providing marijuana.  But none of the evidence demonstrated 

satisfaction of each of the three aspects of the responsibility clause we have 

identified; none of it was sufficient to raise a reasonable doubt as to whether 

Mentch had provided his patients consistent caregiving, independent of providing 

them marijuana, at or before the time he began providing them marijuana. 

First, Mentch argues Eldridge moved in shortly before the June 6, 2003, 

search.  Unfortunately for Mentch’s argument, the record directly contradicts this 

 

17 

assertion.  Eldridge testified she lived elsewhere at the time, and Mentch did not 

testify to the contrary.  Even if the record supported it, however, the argument 

would not address the lack of any evidence of a primary caregiving relationship 

during the preceding year and a half during which Mentch was, by his own 

admission, selling Eldridge marijuana; it would not retroactively bless Mentch’s 

prior cultivation of marijuana and sale of marijuana to her. 

Second, Mentch testified he took “a couple” patients to medical 

appointments “sporadically.”  A sporadic assumption of responsibility is the 

antithesis of a consistent assumption of responsibility; it cannot satisfy the 

responsibility clause. 

Third, Mentch otherwise relied almost exclusively on the provision of 

medical marijuana to establish a primary caregiving relationship.  But the evidence 

must establish an assumption of responsibility independent of the provision of 

medical marijuana.  This shortcoming is also intertwined with Mentch’s problems 

showing a consistent assumption of responsibility:  what “caregiving” was 

consistent consisted only of providing marijuana, while what caregiving was 

independent of providing marijuana was not consistent. 

There is a final overarching problem with the evidence.  Mentch testified to 

providing marijuana to five patients and also to occasionally growing too much 

and providing the excess to marijuana clubs.  But where, as here, Mentch was 

charged with single counts of possession and cultivation, primary caregiver status 

would provide Mentch a defense only if it extended to all the marijuana he 

possessed or cultivated.  Consider, for example, a defendant who testified that he 

(1) grew marijuana, (2) gave half to his critically ill daughter, a qualified patient 

for whom he was the designated primary caregiver and by whom he was 

reimbursed for growing expenses, and (3) sold the other half on the street.  

However much the primary caregiver defense might protect his actions toward his 

 

18 

daughter, it would have no bearing on his case because a portion of his distribution 

of marijuana for money would be unprotected from state prosecution.  Similarly, 

Mentch’s testimony that he “sporadically” took “a couple” of the five patients to 

medical appointments, and his assertion (unsupported by the record) that he 

provided Eldridge shelter, would, even if believed, do nothing to insulate from 

prosecution his cultivation of and sale of marijuana to those for whom he did not 

provide shelter or nonmarijuana-based health care.  (See People v. Urziceanu

supra, 132 Cal.App.4th at p. 773 [rejecting primary caregiver defense because the 

defendant failed to adduce evidence he was “the primary caregiver for all of the 

patients who patronized his cooperative” (italics added)].)  Nor would it protect 

him from prosecution for cultivating marijuana and providing it to cannabis clubs.  

(See People v. Galambos, supra, 104 Cal.App.4th at pp. 1165-1167 [the primary 

caregiver defense does not extend to supplying marijuana to a cooperative]; 

People v. Trippet, supra, 56 Cal.App.4th at p. 1546 [noting with approval a ballot 

pamphlet argument that the Act was not intended to protect “ ‘anyone who grows 

too much, or tries to sell it’ ”]; Ballot Pamp., Gen. Elec. (Nov. 5, 1996) rebuttal to 

argument against Prop. 215, p. 61.)8 

The Court of Appeal appropriately recognized that the right to a jury 

resolution of all disputed factual issues is to be jealously protected.  However, trial 

courts are still responsible for acting as gatekeepers and determining whether the 

                                              

8 

  Mentch’s primary caregiver defense depended on the jury crediting his own 

testimony on the scope of his cultivation and distribution of marijuana.  This is not 

a case where, on the record presented, a rational jury could credit some evidence 

that supported a primary caregiver defense and disbelieve other evidence that 

suggested marijuana cultivation or possession above and beyond that immunized 

from state prosecution by the Act.  Nor is it a case where a defendant was charged 

with multiple counts and a rational jury could conclude the Act provided a 

complete defense to some counts but not others. 

 

19 

evidence presented, considered in the light most favorable to the defendant, could 

establish an affirmative defense — here, whether it could give rise to a reasonable 

doubt as to the existence of an established, legally cognizable primary caregiving 

relationship.  The trial court properly fulfilled its role here in declining to give a 

primary caregiver instruction on this record. 

II.   Defenses Under the Medical Marijuana Program 

Before us, Mentch contends in the alternative that the 2003 enactment of 

the Medical Marijuana Program (Program) (§ 11362.7 et seq.) provides a defense 

to cultivation and possession for sale charges for those who give assistance to 

patients and primary caregivers in (1) administering medical marijuana, and 

(2) acquiring the skills necessary to cultivate or administer medical marijuana 

(§ 11362.765, subds. (a), (b)(3)).  Accordingly, he argues the trial court breached 

its duty to give sua sponte instructions on any affirmative defense supported by the 

evidence.  (See People v. Salas, supra, 37 Cal.4th at p. 982.)  As Mentch 

misinterprets the scope and effect of the Program, we conclude the trial court 

committed no error in failing to instruct on any defense arising from it. 

The Program was passed in part to address issues not included in the Act, 

so as to promote the fair and orderly implementation of the Act and to “[c]larify 

the scope of the application of the [A]ct.”  (Stats. 2003, ch. 875, § 1; see People v. 

Wright (2006) 40 Cal.4th 81, 93.)  As part of its effort to clarify and smooth 

implementation of the Act, the Program immunizes from prosecution a range of 

conduct ancillary to the provision of medical marijuana to qualified patients.  

(§ 11362.765.) 

Having closely analyzed the text of section 11362.765, however, we 

conclude it does not do what Mentch says it does.  While the Program does convey 

additional immunities against cultivation and possession for sale charges to 

specific groups of people, it does so only for specific actions; it does not provide 

 

20 

globally that the specified groups of people may never be charged with cultivation 

or possession for sale.  That is, the immunities conveyed by section 11362.765 

have three defining characteristics:  (1) they each apply only to a specific group of 

people; (2) they each apply only to a specific range of conduct; and (3) they each 

apply only against a specific set of laws.  Subdivision (a) provides in relevant part:  

“Subject to the requirements of this article, the individuals specified in subdivision 

(b) shall not be subject, on that sole basis, to criminal liability under [enumerated 

sections of the Health and Safety Code].”  (§ 11362.765, subd. (a), italics added.)  

Thus, subdivision (b) identifies both the groups of people who are to receive 

immunity and the “sole basis,” the range of their conduct, to which the immunity 

applies, while subdivision (a) identifies the statutory provisions against which the 

specified people and conduct are granted immunity. 

For example, subdivision (b)(1) grants immunity to a “qualified patient or a 

person with [a Program] identification card” who “transports or processes 

marijuana for his or her own personal use.”  (§ 11362.765, subd. (b)(1).)  As we 

explained in People v. Wright, supra, 40 Cal.4th 81, this means a specified group 

— qualified patients and Program identification card holders — may not be 

prosecuted under particular state laws for specific conduct — transportation or 

processing for personal use — that otherwise might have been criminal.  (Id. at 

p. 94; see id. at p. 92 [recognizing that the Program supersedes statement in 

People v. Young (2001) 92 Cal.App.4th 229, 237, that the Act does not immunize 

marijuana transportation].) 

The same is true of subdivision (b)(2) of section 11362.765, which likewise 

extends to a specific group — primary caregivers — state immunity for particular 

conduct — transportation, processing, administration, delivery, or donation — that 

might otherwise fall afoul of state law.  (See People v. Trippet, supra, 56 

Cal.App.4th at p. 1550 [acknowledging that the plain language of the Act, if 

 

21 

literally applied, might fail to protect primary caregivers transporting marijuana 

down a hallway to their patients].)9 

Finally, as relevant here, subdivision (b)(3) of section 11362.765 grants 

immunity to a specific group of individuals — those who assist in administering 

medical marijuana or acquiring the skills necessary to cultivate it — for specific 

conduct, namely, assistance in the administration of, or teaching how to cultivate, 

medical marijuana.10  This immunity is significant; in its absence, those who assist 

patients or primary caregivers in learning how to cultivate marijuana might 

themselves be open to prosecution for cultivation.  (§ 11358.) 

Here, this means Mentch, to the extent he assisted in administering, or 

advised or counseled in the administration or cultivation of, medical marijuana, 

could not be charged with cultivation or possession for sale “on that sole basis.”  

(§ 11362.765, subd. (a).)  It does not mean Mentch could not be charged with 

cultivation or possession for sale on any basis; to the extent he went beyond the 

immunized range of conduct, i.e., administration, advice, and counseling, he 

would, once again, subject himself to the full force of the criminal law.  As it is 

undisputed Mentch did much more than administer, advise, and counsel, the 

                                              

9 

  Section 11362.765, subdivision (b)(2) incorporates the quantitative limits of 

section 11362.77 in defining the scope of the immunity it provides.  The 

constitutionality of those limits is not before us here, and we express no opinion 

on them.  (See People v. Kelly, review granted Aug. 13, 2008, S164830.) 

10 

  Section 11362.765, subdivision (b)(3) extends the statutory immunities of 

subdivision (a) of that section to “[a]ny individual who provides assistance to a 

qualified patient or a person with [a Program] identification card, or his or her 

designated primary caregiver, in administering medical marijuana to the qualified 

patient or person or acquiring the skills necessary to cultivate or administer 

marijuana for medical purposes to the qualified patient or person.” 

 

22 

Program provides him no defense, and the trial court did not err in failing to 

instruct on it.11 

DISPOSITION 

For the foregoing reasons, we reverse the Court of Appeal’s judgment. 

WERDEGAR, J. 

WE CONCUR

GEORGE, C. J. 

KENNARD, J. 

BAXTER, J. 

CHIN, J. 

MORENO, J. 

CORRIGAN, J. 

                                              

11 

  In our grant of review, we asked the parties to brief whether a defendant’s 

burden to raise a reasonable doubt regarding the compassionate use defense (see 

People v. Mower, supra, 28 Cal.4th at p. 477) is a burden of production under 

Evidence Code section 110 or a burden of persuasion under Evidence Code 

section 115.  We also asked the parties to address whether the trial court should 

instruct the jury on a defendant’s burden and, if so, how.  (Compare CALJIC No. 

12.24.1 (2004 rev.) (7th ed. 2003) with CALCRIM No. 2370 (2008).)  Because 

Mentch has failed to show he was entitled to a primary caregiver instruction, 

error — if any — in describing Mentch’s burden in this case would have been 

harmless, so we need not and do not resolve these issues. 

 

1 

 

 

 

 

 

 

 

 

CONCURRING OPINION BY CHIN, J. 

 

 

I entirely agree with, and have signed, the majority opinion.  I write 

separately to underscore the importance of an issue that we asked the parties to 

brief but that, due to our holding on the merits of the compassionate use defense, 

we do not have to decide in this case. 

In People v. Mower (2002) 28 Cal.4th 457, we held that the defendant has 

the burden to raise a reasonable doubt regarding the compassionate use defense.  

As the majority opinion notes, the trial court instructed the jury on the 

compassionate use defense by modifying the standard CALJIC instruction.  The 

instruction included this statement:  “To establish the defense of compassionate 

use, the burden is upon the defendant to raise a reasonable doubt as to guilt . . . .”  

(CALJIC No. 12.24.1 (2004 rev.), quoted in maj. opn., ante, at p. 7, fn. 4.)  The 

standard CALCRIM instruction, by contrast, does not place any burden whatever 

on the defendant.  Instead, it states, “The People have the burden of proving 

beyond a reasonable doubt that the defendant was not authorized to possess or 

transport marijuana for medical purposes.  If the People have not met this burden, 

you must find the defendant not guilty of this crime.”  (Judicial Council of Cal. 

Crim. Jury Instns. (2008), CALCRIM No. 2363.) 

Aware of the difference between the two standard instructions, and 

concerned about whether the trial court properly instructed the jury in this case, we 

directed the parties “to brief the additional question whether the defendant’s 

 

2 

burden to raise a reasonable doubt regarding the compassionate use defense (see 

People v. Mower (2002) 28 Cal.4th 457) is a burden of producing evidence under 

Evidence Code section 110 or a burden of proof under Evidence Code section 115.  

(See, e.g., Evid. Code, §§ 500, 501, 502, 550, and the Law Revision Commission 

Comments thereto; see also Pen. Code, § 189.5 and cases interpreting it, including 

People v. Deloney (1953) 41 Cal.2d 832, 841-842, People v. Cornett (1948) 33 

Cal.2d 33, 42, and People v. Loggins (1972) 23 Cal.App.3d 597; and People v. 

Frazier (2005) 128 Cal.App.4th 807, 816-822.)  In this regard, the parties should 

also discuss whether the trial court should instruct the jury on the defendant’s 

burden to raise a reasonable doubt and, if so, how.  (Compare CALJIC No. 12.24.1 

(2005 Revision) with . . . CALCRIM No. 2363.)” 

The parties have briefed the question and agree on the answer.  They agree 

that the defendant’s burden is only to produce evidence under Evidence Code 

section 110, and that once the trial court finds the defendant has presented 

sufficient evidence to warrant an instruction on the defense, the defendant has 

fully satisfied this burden; accordingly, the court should not instruct the jury on 

any defense burden.  (While generally agreeing that the standard CALCRIM 

instruction is correct in this regard, the Attorney General does suggest one 

modification of that instruction.) 

If the parties’ answer to our question is correct, CALJIC No. 12.24.1 

misinstructs the jury.  The Attorney General argues that any error in this case was 

harmless beyond a reasonable doubt for two reasons:  (1) error in requiring the 

defendant to raise a reasonable doubt as to a defense is inherently harmless in light 

of the instructions as a whole, which make clear to the jury that the prosecution 

has the overall burden of proof beyond a reasonable doubt; and (2) defendant 

simply did not establish the compassionate use defense.  The majority concludes 

that any error in this regard was harmless because defendant “has failed to show 

 

3 

he was entitled to a primary caregiver instruction . . . .”  (Maj. opn., ante, at p. 22, 

fn. 11.)  I agree and thus further agree that we need not now decide the question 

regarding the nature of defendant’s burden to raise a reasonable doubt.  (Ibid.) 

Nevertheless, the question remains important.  As the Attorney General 

notes in arguing that a defendant’s burden is only to produce evidence under 

Evidence Code section 110, and that the court should not instruct the jury on this 

burden, “An instruction on the defendant’s burden of production may run risks 

that are best avoided.”  Accordingly, the question needs to be resolved, preferably 

sooner rather than later.  In the meantime, trial courts might well be advised to be 

cautious before instructing on any defense burden. 

 CHIN, J. 

 

I CONCUR: 

CORRIGAN, J. 

 

 1 

See next page for addresses and telephone numbers for counsel who argued in Supreme Court. 

 

Name of Opinion People v. Mentch 

__________________________________________________________________________________ 

 

Unpublished Opinion 

Original Appeal 

Original Proceeding 

Review Granted XXX 143 Cal.App.4th 1461 

Rehearing Granted 

 

__________________________________________________________________________________ 

 

Opinion No. S148204 

Date Filed: November 24, 2008 

__________________________________________________________________________________ 

 

Court: Superior 

County: Santa Cruz 

Judge: Samuel S. Stevens 

 

__________________________________________________________________________________ 

 

Attorneys for Appellant: 

 

Lawrence A. Gibbs, under appointment by the Supreme Court, and Joseph M. Bochner, under appointment 

by the Court of Appeal, for Defendant and Appellant. 

 

Drug Policy Alliance, Daniel Abrahamson, Tamar Todd and Theshia Naidoo for Marcus A. Conant, Robert 

J. Melamede and Gerald F. Uelmen as Amici Curiae on behalf of Defendant and Appellant. 

 

Joseph D. Elford for Americans for Safe Access as Amicus Curiae on behalf of Defendant and Appellant. 

 

 

__________________________________________________________________________________ 

 

Attorneys for Respondent: 

 

Bill Lockyer and Edmund G. Brown, Jr., Attorneys General, Donald E. de Nicola, Deputy State Solicitor 

General, Robert R. Anderson and Dane R. Gillette, Chief Assistant Attorneys General, Gerald A. Engler, 

Assistant Attorney General, Moona Nandi, Laurence K. Sullivan and Michele J. Swanson, Deputy 

Attorneys General, for Plaintiff and Respondent. 

 

 

 

 

 2 

 

 

 

 

Counsel who argued in Supreme Court (not intended for publication with opinion): 

 

Lawrence A. Gibbs 

P.O. Box 7639 

Berkeley, CA  94707 

(510) 525-6847 

 

Michele J. Swanson 

Deputy Attorney General 

455 Golden Gate Avenue, Suite 11000 

San Francisco, CA  94102-7004 

(415) 703-5703 

 

 

  

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