Commonwealth v. Richardson , 479 Mass. 344 ( 2018 )


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    SJC-12375
    COMMONWEALTH   vs.   JOSHUA A. RICHARDSON.
    Middlesex.       December 7, 2017. - April 17, 2018.
    Present:   Gants, C.J., Gaziano, Lowy, Cypher, & Kafker, JJ.
    Marijuana. Medicine. Controlled Substances. Search and
    Seizure, Affidavit, Probable cause, Warrant. Probable
    Cause. License. Jury and Jurors. Evidence, Expert
    opinion, Intent. Intent. Practice, Criminal, Affidavit,
    Motion to suppress, Warrant, Instructions to jury.
    Complaint received and sworn to in the Framingham Division
    of the District Court Department on September 9, 2013.
    A motion to dismiss was heard by Douglas W. Stoddart, J.; a
    pretrial motion to suppress evidence was heard by Martine
    Carroll, J.; and the case was tried before David W. Cunis, J.
    The Supreme Judicial Court granted an application for
    direct appellate review.
    Allison Callahan for the defendant.
    Elizabeth J. May, Assistant District Attorney, for the
    Commonwealth.
    KAFKER, J.    The defendant, a medical marijuana patient, was
    arrested when police discovered twenty-two marijuana plants
    2
    growing in his basement.   After a jury trial, he was convicted
    of unlawful cultivation of marijuana and possession with intent
    to distribute marijuana.   On appeal, he argues that (1) the
    criminal complaint and the search warrant lacked probable cause;
    (2) the jury instructions were in error; (3) the evidence was
    insufficient to find the defendant guilty beyond a reasonable
    doubt; and (4) the medical marijuana law's sixty-day supply
    limit is unconstitutionally vague as applied.   For the reasons
    stated below, we reverse in part and affirm in part.
    1.   Background.   The defendant, Joshua A. Richardson, was
    an unemployed tattoo artist living in Framingham at the time of
    his arrest.   On July 2, 2013, he obtained a written
    certification from a qualifying physician that approved his use
    of medical marijuana to treat a number of medical conditions.
    The certification constituted a valid hardship cultivation
    registration permitting the defendant to grow up to ten ounces
    of marijuana every sixty days for his personal, medical use.1
    1 No medical marijuana dispensaries were operating at this
    time and the Department of Public Health (department) had not
    yet begun to process hardship cultivation registration
    applications. Commonwealth v. Canning, 
    471 Mass. 341
    , 348 &
    n.10 (2015). Accordingly, every qualifying patient with a
    written certification was authorized to cultivate medical
    marijuana. 
    Id.
     at 347-348 & n.8-10, 349. See St. 2012, c. 369,
    § 2 (N) (defining a written certification as a "document signed
    by a licensed physician, stating that in the physician's
    professional opinion, the potential benefits of medical use of
    3
    Approximately two months later, on September 7, 2013, the
    defendant telephoned 911 to report a home invasion at his
    residence.   The defendant told the 911 operator that three men
    had entered his home and "started beating the hell out of
    [him]."
    Officer Wayne Jordan reported to the defendant's residence
    within a few minutes of receiving the dispatch.    The defendant
    told Wayne that three men had broken into his house, one of whom
    had a gun.   Approximately twenty officers arrived on scene,
    including a number of Framingham police vehicles; State police
    vehicles and canine units; a State police helicopter; and
    officers from surrounding towns.   The police established a
    perimeter around the house to search for the home invaders.
    Framingham police Sergeant Michael Esposito assembled a team of
    officers to enter the defendant's home to determine whether the
    suspects were still inside.   The team did not find anyone inside
    the house.   However, Sergeant Esposito observed a pressure
    cooker and an autoclave2 in the kitchen.    In a room on the first
    floor, Sergeant Esposito noticed "a fan and blower assembly with
    a hose feeding it air or taking air out."    He observed a plastic
    marijuana would likely outweigh the health risks for the
    qualifying patient").
    2 Sergeant Michael Esposito testified that an autoclave is a
    device typically found in a medical facility that is used to
    sterilize equipment.
    4
    container with aluminum trays with a brown leafy substance in
    them, which he described at trial as "some type of something
    growing in those trays."3   He also found a blow torch and
    numerous plastic bags in the room.
    Sergeant Esposito learned from other officers on the team
    that they had found marijuana growing in the basement.     At that
    point, Esposito ordered everyone out of the house and secured
    the premises.   Once outside, Sergeant Esposito read the
    defendant the Miranda rights.   The defendant indicated that he
    would not speak with police without his attorney present, and
    Esposito stopped asking him questions.   However, the defendant
    then said, unprompted, that the police "only had the right to go
    in my house and look for . . . the guys with the gun.    I never
    3 One of the police reports indicated that police believed
    this to be a "psilocybin mushroom grow". When police asked the
    defendant about the items found in the room on the first floor,
    the defendant said "he was experimenting on how to grow
    mushrooms" and that "he was teaching his [five] year old son how
    to grow things." He stated that "he had also been trying to
    grow his own mushroom spores and that they were contained in a
    white Styrofoam box in that room." The police seized the
    mushrooms and sent them for laboratory analysis. The police
    report states that "charges will be filed [for growing
    psilocybin mushrooms] after analysis" of the mushrooms. At the
    motion to dismiss hearing, the Commonwealth indicated that it
    made sense to try the mushroom and marijuana charges together,
    but that the Commonwealth did not know the status of the
    laboratory analysis of the mushrooms. Ultimately, the
    Commonwealth never charged the defendant with a crime related to
    the mushrooms. The record does not indicate whether this is
    because the laboratory analysis showed that the mushrooms did
    not contain psilocybin or for some other reason.
    5
    gave you permission to look for drugs.     This is fucked up."    He
    indicated that he had a license to grow marijuana.     At that
    point, the defendant was placed under arrest and searched.       The
    police found $2,135 in cash in his pocket.
    After the defendant was arrested, he was taken to the
    Framingham police station.     He requested to speak with the
    detectives investigating his case.     Detective Robert Lewis of
    the Framingham police department's narcotics unit brought the
    defendant into an interview room and read him the Miranda rights
    again.   The defendant explained to the detective that he had
    recently been given a medical marijuana card and was growing
    marijuana under that registration, referring to the doctor's
    certification issued to him on July 2, 2013.     On the morning of
    his arrest, he was in the basement pruning his marijuana plants
    when he heard a noise coming downstairs.     He saw two
    individuals, one with a gun.     He ran upstairs to the second-
    floor bedroom, and noticed a third man coming up the stairs
    toward him.   He escaped the house and telephoned 911, using a
    cellular telephone borrowed from a passing bystander.
    Pursuant to a search warrant, Framingham officers seized
    twenty-two plants ranging in height from one foot to three feet
    tall, fertilizer, pots, and soil from the basement.       According
    6
    to Officer Lewis, some of the plants were "in full bloom."4    The
    plants were all located in the basement, in a tent designed for
    growing marijuana.   The officers found two large five feet by
    three feet high intensity lights hanging over the marijuana
    plants, a ballast system,5 and other boxes of lights in the
    basement.   There was a "fertilizer grow kit" in the basement as
    well, labeled, "Recipe for Success Starter Kit".   In the room on
    the first floor that Sergeant Esposito had previously examined,
    they found a scale and plastic bags.6   In the kitchen, they found
    fertilizer advertised for growing marijuana.   Detective Lewis
    also testified that they found evidence of a tattoo business in
    the house, specifically a tattoo gun.   However, he did not find
    any physical evidence that a home invasion had occurred or that
    anyone else had been in the house.   Lewis further testified that
    the defendant's account of seeing a third man come up the stairs
    4 On cross-examination, Detective Robert Lewis could not
    identify which plants were flowering from a photograph taken of
    the grow operation.
    5 The Commonwealth's expert testified that ballasts are used
    in conjunction with high intensity lights to "provide light to a
    specific number of plants." The wattage of the ballasts is
    important because the brightness of the grow lights affects the
    growth cycle of marijuana plants.
    6 The search warrant return document indicates that the
    scale was found in the master bedroom, but Detective Lewis
    testified that the scale was found in the room on the first
    floor.
    7
    to the second floor was inconsistent with the layout of the
    house.
    At trial, the defendant's former girl friend, who was
    dating and living with him at the time of his arrest, testified
    for the Commonwealth.     The couple had known each other for
    fourteen months and had dated for eleven months when the
    defendant was arrested.    When asked if the defendant was a
    regular marijuana user at the time of his arrest, she testified,
    "not that I noticed -- maybe a couple times.     I don't know what
    he did when I he [sic] was not around."     She stated that he was
    not working at the time.     She observed him leave the house from
    time to time but didn't know where he went.     She worked five or
    six days per week, and when she came home the defendant was
    often sleeping, hidden in the back room on the first floor, or
    not home.   She acknowledged that the defendant had tattoo
    equipment at the house, and that she saw him "do a couple of
    tattoos."   She also testified that he was typically paid in cash
    by friends for giving them tattoos.     In the whole time she dated
    the defendant, she could recall approximately six times that he
    said he was going to do work at a tattoo parlor.     She did not
    know whether his tattoo equipment included the pressure cooker
    or autoclave found in the house.
    The defendant was charged with unlawful cultivation of
    marijuana and possession of marijuana with intent to distribute.
    8
    Prior to trial, he moved to dismiss the complaint, arguing that
    there was no probable cause to believe he had committed the
    crimes charged.     The motion was denied.   The defendant then
    moved to suppress his statements to police and the evidence
    seized, arguing that he did not give police permission to enter
    his house in the first instance, and that there was no probable
    cause to believe that he had committed the crimes charged.        The
    motion to suppress also was denied.     After a jury trial, the
    defendant was convicted on both counts.      The defendant appealed,
    and we granted his application for direct appellate review.
    2.   Discussion.    General Laws c. 94C, § 32C (a), provides:
    "Any person who knowingly or intentionally
    manufactures, distributes, dispenses or cultivates, or
    possesses with intent to manufacture, distribute, dispense
    or cultivate a controlled substance in Class D of [§ 31]
    shall be imprisoned in a jail or house of correction for
    not more than two years or by a fine or not less than
    [$500] nor more than [$5,000], or both such fine and
    imprisonment."
    The applicability of this section was altered by the
    legalization of medical marijuana in Massachusetts.
    The Commonwealth's medical marijuana scheme, St. 2012,
    c. 369 (act), was passed by ballot initiative in 2012.7     It
    provides in part:
    7 Upon the execution of the transfer agreement between the
    department and the Cannabis Control Commission, or on December
    31, 2018, whichever occurs first, St. 2012, c. 369, will be
    codified as G. L. c. 94I. See St. 2017, c. 55, §§ 44, 82.
    9
    "A qualifying patient or a personal caregiver shall
    not be subject to arrest or prosecution, or civil penalty,
    for the medical use of marijuana provided he or she:
    "(a) Possesses no more marijuana than is necessary for
    the patient's personal, medical use, not exceeding the
    amount necessary for a sixty-day supply; and
    "(b) Presents his or her registration card to any law
    enforcement official who questions the patient or caregiver
    regarding use of marijuana."
    St. 2012, c. 369, § 4.     However, "[n]othing in [the act]
    supersedes Massachusetts law prohibiting the possession,
    cultivation, transport, distribution, or sale of marijuana for
    nonmedical purposes."     St. 2012, c. 369, § 7 (E).   The act went
    into effect on January 1, 2013, and corresponding regulations
    became effective May 24, 2013.     St. 2012, c. 369, § 16.
    Under the act, qualifying patients may use marijuana for
    medicinal purposes, within certain parameters.     "[T]he principal
    source of medical marijuana is intended to be the nonprofit
    medical marijuana treatment centers, or dispensaries, that are
    to be registered by [the Department of Public Health]"
    (department).     Commonwealth v. Canning, 
    471 Mass. 341
    , 345-346
    (2015).   However, the act permits qualifying patients to obtain
    a "hardship cultivation registration" in certain limited
    circumstances.8    St. 2012, c. 369, § 11.
    8 A recreational marijuana scheme, St. 2016, c. 334, was
    later passed by ballot initiative in 2016. Effective December
    15, 2016, an individual may grow up to six marijuana plants, so
    10
    Patients may qualify for a hardship cultivation
    registration if their access to a dispensary is "limited by
    verified financial hardship, a physical incapacity to access
    reasonable transportation, or the lack of a treatment center
    within a reasonable distance of the patient's residence."     St.
    2012, c. 369, § 11.   A hardship cultivation registration allows
    the qualifying patient or the patient's personal caregiver to
    "cultivate a limited number of plants, sufficient to maintain a
    [sixty]-day supply of marijuana."   Id.   A "sixty-day supply" is
    defined by regulation as presumptively ten ounces, unless a
    physician certifies that a larger quantity is necessary to
    provide the patient with a sixty-day supply.   See 105 Code Mass.
    Regs. §§ 725.004, 725.010(I) (2017).
    The hardship cultivation registration was envisioned as "an
    approach of last resort."   Memorandum from DPH Medical Marijuana
    Work Group to Interim Commissioner of Department of Public
    Health and Members of Public Health Council, Informational
    Briefing on Proposed Regulations at 105 CMR 725.000, at 6 (Apr.
    10, 2013).   Recognizing the possible "diversion and security
    complications" that accompany home cultivation, the department
    promulgated medical marijuana regulations with an intent to
    "minimize hardship cultivation by optimizing access through a
    long as no more than twelve plants are grown per household.     See
    G. L. c. 94G, § 7 (a) (2); St. 2016, c. 334, § 12.
    11
    variety of [other] approaches."    Id. at 8.   However, at the time
    of the defendant's arrest, there were no medical marijuana
    dispensaries open in Massachusetts, and the department had not
    yet begun to process hardship cultivation registration
    applications.    See Canning, 471 Mass. at 347-348 & n.10.     Thus,
    as a qualifying medical marijuana patient, the defendant was
    permitted to pursue home cultivation under the act.     See id. at
    349 ("when the search at issue here took place, the act was not
    fully implemented; no marijuana treatment centers were
    operating; and therefore, . . . every person who was certified
    as a qualifying patient . . . was authorized to cultivate a
    sufficient quantity of marijuana to produce a sixty-day supply"
    [emphasis in original]).     Accordingly, the defendant was
    protected from prosecution for cultivating marijuana for his
    personal, medical use, provided he did not possess marijuana in
    excess of the amount necessary for a sixty-day supply.        See St.
    2012, c.   369, § 4.
    a.     Probable cause.   The defendant argues that the motion
    to dismiss and the motion to suppress were each improperly
    denied.    On appeal, he provides the same rationale in support of
    both contentions -- that there was insufficient probable cause.
    i.     Motion to suppress.   In determining whether the motion
    to suppress was properly denied, we are limited to examining the
    four corners of the search warrant affidavit.     Canning, 471
    12
    Mass. at 348.   We must decide whether "the magistrate had a
    substantial basis to conclude that a crime had been committed, .
    . . and that the items described in the warrant were related to
    the criminal activity and probably in the place to be searched."
    Id., quoting Commonwealth v. O’Day, 
    440 Mass. 296
    , 297-298
    (2003).
    A search warrant affidavit that merely sets out facts
    establishing probable cause to believe a homeowner is growing
    marijuana on the property to be searched, without more, does not
    establish probable cause to believe a crime has been committed.
    Canning, 471 Mass. at 352-353.9   Where the target of the warrant
    has a valid hardship cultivation registration, facts indicating
    that the person is selling the marijuana or that "in the opinion
    of a properly qualified affiant, the number of plants exceeded
    the quantity necessary to grow a sixty-day supply of ten ounces"
    can supply probable cause.   Id. at 352 n.15.   The search warrant
    at issue here established both.
    The affidavit that Detective Lewis submitted in support of
    the search warrant stated explicitly that based on the number of
    9 Our opinion in Canning goes on to say that facts
    indicating that the person does not have a valid hardship
    cultivation registration can supply probable cause. Canning,
    471 Mass. at 352. We note, however, that Canning was decided
    before recreational marijuana was legalized, which permits
    individuals to grow a limited number of marijuana plants without
    a hardship cultivation registration. See G. L. c. 94G,
    § 7 (a) (2). See also note 8, supra.
    13
    plants found, the conditions under which they were growing, and
    his own experience with the narcotics unit, he believed that the
    "marijuana grow" was in excess of the amount necessary for
    personal medical use.   Moreover, the affidavit indicated that a
    suspected "psilocybin mushroom grow" was found in the house; the
    defendant's long-term girl friend did not know why he was
    growing marijuana given that he did not smoke marijuana on a
    regular basis; and the defendant had said that two men came
    directly into his basement, the exact location of his marijuana
    grow, and that one had brandished a gun.   This was sufficient to
    establish probable cause.10
    10However, we note that the affiant's assertion that "by
    and large it is not worth it for users to invest the necessary
    time and money to create a successful marijuana grow when they
    can simply buy marijuana from somebody else," is not itself a
    proper basis for establishing probable cause. The act
    contemplates that users with valid hardship cultivation
    registrations will cultivate marijuana. It would defeat the
    public's purpose in voting for the medical marijuana scheme to
    treat evidence consistent with lawful cultivation as evidence of
    unlawful cultivation or intent to distribute. Cf. Canning, 471
    Mass. at 352 ("The act's medical marijuana program is structured
    as a licensing or registration system, and expressly
    contemplates the lawful possession, cultivation, and
    distribution of marijuana for medical purposes by a number of
    different individuals [and certain nonprofit entities], as long
    as they are registered to do so. In light of the statutory and
    regulatory framework created by the act, a search warrant
    affidavit setting out facts that simply establish probable cause
    to believe the owner is growing marijuana on the property in
    question, without more, is insufficient to establish probable
    cause to believe that the suspected cultivation is a crime");
    Commonwealth v. Humberto H., 
    466 Mass. 562
    , 570 (2013) ("Where
    [intent to distribute] is not [supported by probable cause],
    14
    The defendant argues that the police were required to
    investigate how much marijuana constituted a sixty-day supply
    under his registration, because "[n]either the statute nor the
    [regulations] provide[s] a presumptive limit on how much
    marijuana a person may legally prescribe."    The defendant
    misstates the law.   Although there is no absolute limit on how
    much medical marijuana can be prescribed, the presumptive limit
    is indeed ten ounces in a sixty-day period.    See note 14, infra.
    Accordingly, there was sufficient probable cause for the search
    warrant.
    ii.    Motion to dismiss.   A motion to dismiss for lack of
    probable cause is evaluated from the four corners of the
    application for a complaint.    See Commonwealth v. DiBennadetto,
    
    436 Mass. 310
    , 313 (2002); Commonwealth v. Bell, 
    83 Mass. App. Ct. 61
    , 62 (2013).   Here, the application included police
    reports from Sergeant Esposito and Detective Lewis, which laid
    out substantially the same factual basis as the search warrant
    affidavit.   Accordingly, for the reasons explained above, the
    motion to dismiss also was properly denied.
    criminal prosecution defeats the public's purpose in voting for
    decriminalization because it not only treats simple possession
    of one ounce or less of marijuana as if it were 'a serious
    infraction worthy of criminal sanction,' . . . but it also
    treats a drug user as a drug dealer" [citation omitted]).
    15
    b.   Jury instructions.   The defendant argues for the first
    time on appeal that the jury instructions were in error.
    Because he did not object to the instructions at trial, we
    review for a substantial risk of a miscarriage of justice.      See
    Commonwealth v. St. Louis, 
    473 Mass. 350
    , 359 (2015).
    i.   Instruction on possession with intent to distribute.
    The judge explained that the Commonwealth was required to prove
    beyond a reasonable doubt that (1) the substance in question was
    a class D substance; (2) the defendant possessed some
    perceptible amount of that substance with the intent to
    distribute it to another person; and (3) the defendant did so
    knowingly or intentionally.    See G. L. c. 94C, § 32C;
    Instruction 7.800 of the Criminal Model Jury Instructions for
    Use in the District Court (2009).   The defendant argues that
    possession with intent to distribute requires possession of
    usable marijuana,11 not simply marijuana, and that the judge
    erred in failing to make this distinction.    The defendant is
    incorrect.
    General laws c. 94C, § 32C, prohibits possessing a class D
    substance with intent to distribute.    "Marihuana" is listed as a
    11Usable marijuana is defined by regulation as "the fresh
    or dried leaves and flowers of the female marijuana plant and
    any mixture or preparation thereof, including [marijuana-infused
    products], but does not include the seedlings, seeds, stalks, or
    roots of the plant, or [marijuana waste product]." 105 Code
    Mass. Regs. § 725.004 (2017).
    16
    class D substance, and is defined to include "all parts of the
    plant [c]annabis sativa L., whether growing or not."    See G. L.
    c. 94C, §§ 1, 31.   The medical marijuana act adopted the meaning
    of "marihuana" as defined in G. L. c. 94C, § 1.    See St. 2012,
    c. 369, § 2 (G).    Although the medical marijuana regulations
    contain a definition for "usable marijuana," the term is only
    used to explain certain regulatory requirements and in no way
    alters the meaning of "marihuana" under G. L. c. 94C, § 1.
    Accordingly, the judge did not err in instructing the jury that
    the defendant need only possess marijuana, not usable marijuana,
    for the purposes of possession with intent to distribute.
    The defendant also argues that the instructions were
    improper for failing to clarify what evidence the jury may
    consider where the defendant has a valid home cultivation
    registration.   The judge instructed:
    "Among the factors you may consider in [evaluating intent to
    distribute] are how large a quantity of drugs were possessed,
    how pure in quality the drugs were, what the street value of
    the drugs were, what the defendant's financial resources were,
    how the drugs were packaged, whether there were other items
    that were found along with the drugs which might suggest drug
    sales, such as cutting agents or packaging materials, scale[s]
    or large amounts of cash."
    This instruction is primarily derived from our case law prior to
    the enactment of the medical marijuana scheme.    See, e.g.,
    Commonwealth v. Clermy, 
    421 Mass. 325
    , 331 (1995) (packaging of
    drugs in many small packets and possession of telephone pager);
    17
    Commonwealth v. Scala, 
    380 Mass. 500
    , 511 (1980) (quantity
    possessed); Commonwealth v. Sendele, 
    18 Mass. App. Ct. 755
    , 758-
    759 (1984) (quantity, purity, packaging, and amount of cash
    possessed).
    Here, the defendant asserts that the judge was required to
    include an instruction clarifying that lawful home cultivation
    of medical marijuana requires adhering to "industry best
    practices," pursuant to 105 Code Mass. Regs. § 725.035(I)
    (2017).   The defendant argues that because the jury were unaware
    of the best practices requirement, and because the Commonwealth
    relied heavily on testimony about his equipment, the jury may
    have improperly discerned an intent to distribute from his
    lawful use of grow equipment contemplated by the regulatory
    scheme.   Although the regulations do not define the "industry
    best practices" to which patients must adhere, elsewhere in the
    regulations medical marijuana dispensaries are required to "use
    best practices to limit contamination, including but not limited
    to mold, fungus, bacterial diseases, rot, pests, pesticides not
    approved by the [d]epartment, mildew, and any other contaminant
    identified as posing potential harm."   105 Code Mass. Regs.
    § 725.105(B)(1)(f) (2017).   As indicated by the expert testimony
    at trial, to limit contamination, growers use particularized
    equipment, such as high efficiency particulate air filters,
    ozone generators, and hydrometers.
    18
    "An error creates a substantial risk of a miscarriage of
    justice unless we are persuaded that it did not 'materially
    influence[]' the guilty verdict" (citation omitted).
    Commonwealth v. Alphas, 
    430 Mass. 8
    , 13 (1999).   "In applying
    this standard, we analyze the potential impact of the error on
    the verdict, . . . and review the record to determine the
    strength of the Commonwealth's case, absent the improper
    evidence" (citations omitted).   Commonwealth v. Horne, 
    476 Mass. 222
    , 228 (2017).
    Although we agree that juries should be informed of the
    "industry best practices" requirement when such an instruction
    is requested,12 here we cannot conclude that its absence
    materially influenced the verdict on possession with intent to
    distribute.   Sophisticated grow equipment designed to increase
    the yield of usable marijuana, in combination with a large
    number of plants, may properly be considered when evaluating
    12In cases involving a defendant with a valid hardship
    cultivation registration, the jury should be instructed that the
    medical marijuana regulations require medical marijuana patients
    and caregivers to adhere to industry best practices in the
    cultivation of marijuana plants and storage of usable marijuana.
    105 Code Mass. Regs. § 725.035(I) (2017). "Industry best
    practices" is not defined in the regulation, but may be
    understood as those industry practices commonly used to limit
    contamination. See 105 Code Mass. Regs. § 725.105(B)(1)(f)
    (2017). A patient or caregiver's use of industry best practices
    is not evidence of criminal intent.
    19
    intent to distribute.13   The testimony at trial indicated that
    the actual equipment and methods used for the defendant's grow
    operation were primarily associated with increasing yield.
    However, there was no testimony indicating that such equipment
    was associated with limiting contamination.    To the contrary,
    the expert testimony indicated that the defendant lacked
    equipment necessary to limit contamination.    More importantly,
    in addition to the grow equipment, the jury also heard evidence
    of an armed home invasion, a large amount of cash, numerous
    plastic baggies, a digital pocket scale, and the defendant's
    sparing drug use.   Under these circumstances, the failure to
    give a best practices instruction, even if in error, did not
    create a substantial risk of a miscarriage of justice.
    ii.   Unlawful cultivation instruction.   The model jury
    instruction for unlawful cultivation, and the one given in this
    case, albeit with supplementation, is that unlawful cultivation
    consists of three elements:   (1) the substance in question was a
    class D substance; (2) the defendant cultivated some perceptible
    amount of that substance; and (3) the defendant did so knowingly
    13We recognize that there may be overlap between equipment
    designed to increase yield and equipment designed to limit
    contamination. If fewer plants succumb to contamination, the
    total crop yield of usable marijuana will presumably be higher.
    However, we discern a distinction between equipment whose
    primary purpose is to limit contamination, and equipment whose
    primary purpose is to increase yield, irrespective of
    contamination.
    20
    or intentionally.   See G. L. c. 94C, § 32C; Instruction 7.800 of
    the Criminal Model Jury Instructions for Use in the District
    Court.
    Under this definition, any medical marijuana patient who
    cultivates his or her own supply of medical marijuana, a class D
    substance, pursuant to a hardship cultivation registration would
    be guilty of unlawful cultivation.    However, "[u]nder the
    [medical marijuana] act, cultivation of marijuana is expressly
    permitted if a person . . . is properly registered to do so, and
    the cultivation does not exceed the amount necessary to yield a
    sixty-day supply of medical marijuana" for the patient's
    personal, medical use.   Canning, 471 Mass. at 349; St. 2012,
    c. 369, §§ 4, 7.
    The act creates two theories of unlawful cultivation of
    medical marijuana where the defendant produces evidence of a
    valid hardship cultivation registration:     (1) unlawful
    cultivation of more than a sixty-day supply, and (2) unlawful
    cultivation for nonpersonal use.     See St. 2012, c. 369, § 4.
    Under a theory of unlawful cultivation of more than a sixty-day
    supply, the jury must be instructed as to the three elements of
    unlawful cultivation mentioned above, as well as two additional
    elements:   (a) the defendant cultivated more than the amount
    necessary to provide a sixty-day supply of medical marijuana to
    the patient; and (b) the defendant did so intentionally.      See
    21
    Canning, 471 Mass. at 349; St. 2012, c. 369, § 4.   It is not
    enough that the plants happen to yield more than ten ounces in a
    sixty-day period; the medical marijuana regulations contemplate
    a patient's ability to return excess marijuana to a medical
    dispensary.   See 105 Code Mass. Regs. § 725.105(J)(4) (2017).
    Rather, the Commonwealth must show that the defendant was
    intentionally cultivating more than the amount necessary to
    provide ten ounces of usable marijuana in a sixty-day period.14
    By contrast, under a theory of unlawful cultivation for
    nonpersonal use, the jury must instead be instructed as to the
    following additional element:   the defendant cultivated
    marijuana with the intent to distribute.15   See St. 2012, c. 369,
    §§ 4, 7 (E).16
    14The regulations contemplate that a sixty-day supply may
    exceed ten ounces for a particular patient. St. 2012, c. 369,
    § 8; 105 Code Mass. Regs. § 725.010(I) (2017). In such
    instances, the certifying physician must "document the amount
    [that constitutes a sixty-day supply] and the rationale in the
    medical record and in the written certification." 105 Code
    Mass. Regs. § 725.010(I). For defendants who produce evidence
    establishing that they were validly permitted to grow more than
    ten ounces every sixty days, the Commonwealth must prove that
    they intended to cultivate more than their registration
    permitted them to grow in a sixty-day period.
    15The regulations permit home cultivation by a personal
    caregiver on behalf of the patient the caregiver serves. See
    105 Code Mass. Regs. § 725.020(E) (2017). In cases where a
    personal caregiver is being tried for unlawful cultivation for
    nonpersonal use, the relevant inquiry is whether the defendant
    cultivated marijuana with the intent to distribute it to someone
    other than the patient for whom the defendant served as a
    22
    To determine whether the unlawful cultivation instruction
    was erroneous such that it created a substantial risk of a
    miscarriage of justice, we must examine the jury instructions as
    a whole.   See Commonwealth v. Shea, 
    467 Mass. 788
    , 796 (2014).
    "Isolated misstatements included in a comprehensive charge to
    the jury do not constitute reversible error when there is little
    likelihood that the jury would have misunderstood the correct
    import of the entire charge."   Commonwealth v. Rogers, 
    459 Mass. 249
    , 262, cert. denied, 
    565 U.S. 1080
     (2011).
    Although the judge did not use the language set out above,
    he told the jury that the defendant had a valid hardship
    cultivation registration and that it was the Commonwealth's
    burden to prove the defendant "had so many marijuana plants that
    the plant yield was certain to exceed [ten] ounces of usable
    marijuana every [sixty] days or that he intended to sell or
    distribute any of his usable marijuana."   This instruction
    failed to explain that the Commonwealth must show that the
    defendant was intentionally cultivating more than ten ounces of
    usable marijuana in a sixty-day period.    Without such a
    directive, the judge's instructions could have led the jury to
    personal caregiver. See St. 2012, c. 369, § 4 (personal
    caregivers included in provision protecting personal, medical
    use from prosecution).
    16 Model jury instructions for unlawful cultivation of
    marijuana is set forth in the Appendix.
    23
    convict the defendant even if he was unintentionally cultivating
    more plants than were necessary to yield ten ounces in sixty
    days.     Thus, the jury instructions on unlawful cultivation were
    erroneous.
    We conclude that this error created a substantial risk of a
    miscarriage of justice.17    As will be explained in more detail in
    our discussion of the sufficiency of the evidence, there was
    limited expert testimony about how much the defendant's plants
    would yield.    The jury were also tasked with determining whether
    the defendant was a novice or an experienced grower as the two
    experts had contradictory testimony on this point.    In these
    circumstances, whether the defendant was intentionally
    cultivating more than ten ounces was a difficult jury question.
    We are not persuaded that the absence of this jury instruction
    17 At oral argument, the Commonwealth insisted that even if
    the jury instructions for unlawful cultivation were erroneous,
    the defendant's conviction should be upheld under a theory of
    unlawful cultivation for nonpersonal use. The Commonwealth
    reasoned that because the jury found the defendant guilty of
    possession with intent to distribute, he would be guilty of
    unlawful cultivation irrespective of whether he grew more than a
    sixty-day supply. Without better briefing on the subtle
    distinction between unlawful cultivation for nonpersonal use and
    possession with intent to distribute in these circumstances, we
    decline to consider this theory where it is first raised at oral
    argument. See Commonwealth v. Palmer, 
    464 Mass. 773
    , 777
    (2013); Commonwealth v. Keefner, 
    461 Mass. 507
    , 511 (2012);
    Warner–Lambert Co. v. Execuquest Corp., 
    427 Mass. 46
    , 50 n.7
    (1998); Mass. R. A. P. 16 (a) (4), as amended, 
    367 Mass. 921
    (1975).
    24
    did not materially influence the outcome.     See Alphas, 430 Mass.
    at 13.18
    c.    Sufficiency of the evidence.   Next, the defendant
    argues that the evidence was insufficient as to both unlawful
    cultivation and possession with intent to distribute.     In
    reviewing the sufficiency of the evidence, we must determine
    whether, viewing the evidence in the light most favorable to the
    Commonwealth, any rational trier of fact could have found the
    defendant guilty beyond a reasonable doubt.     Commonwealth v.
    Latimore, 
    378 Mass. 671
    , 677-678 (1979).    "Under this standard
    of review, we resolve issues of witness credibility in favor of
    the Commonwealth. . . .    In determining whether a reasonable
    jury could find each element of the crime charged, we also do
    not weigh the supporting evidence against conflicting evidence"
    (citation omitted).    Commonwealth v. Brown, 
    477 Mass. 805
    , 812
    (2017).
    18The defendant also argues that his trial counsel was
    ineffective for helping to write the jury instructions he
    contends are erroneous. We need not address the defendant's
    claim of ineffective assistance as to the unlawful cultivation
    conviction, as we have already determined that the instruction
    was erroneous and created a substantial risk of a miscarriage of
    justice. However, for essentially the same reasons that led us
    to conclude that the jury instructions on possession with intent
    to distribute did not create a substantial risk of a miscarriage
    of justice, we also conclude that those instructions did not
    prejudice the defendant. See Commonwealth v. Peters, 
    429 Mass. 22
    , 31 n.12 (1999). The only error in those instructions
    related to best practices, an issue of marginal relevance in the
    instant case.
    25
    i.   Evidence of yield in excess of sixty-day supply.      As
    discussed, the jury were not properly instructed as to the
    standard for evaluating whether a defendant exceeded the home
    cultivation limit.   We also conclude that the evidence was
    insufficient to support such a finding.
    As the Commonwealth's expert testified, an individual
    marijuana plant's yield depends on a number of factors,
    including the strain, growing conditions, fertilization,
    watering, temperature, ventilation, amount of light, location,
    and humidity.   Yet the Commonwealth's expert never personally
    observed the defendant's marijuana grow.   His testimony was
    instead based on reading the police report, search warrant
    affidavit, and transcript of prior testimony, and on viewing a
    single photograph of the defendant's marijuana plants.     Much of
    the ambiguity in the expert testimony in this case arose out of
    the dependence of both experts on this single photograph.
    The jury heard testimony from both experts that the
    defendant's plant yield would depend particularly on the gender
    of the plants grown.   Although female plants produce usable
    marijuana, male plants do not.   Moreover, male plants produce a
    pollen that will "stress the female plants out and take away the
    [tetrahydrocannabinol] factor, if not completely ruin the
    26
    crop."19   When asked about the gender of the defendant's
    marijuana plants, the Commonwealth's expert initially testified
    that the plants "would definitely be female."    However, when
    later asked whether he could specifically identify the gender of
    the plants found in the defendant's basement, he said "it would
    be tough to identify" the smaller plants based on the
    photograph.    He said that, from the photograph, the bigger
    plants "look female and [he] would be shocked to see if any of
    them were male."    He reasoned that "you would never have a male
    plant with a female plant under any circumstances."     When asked
    about an inexperienced grower who might cluster male and female
    plants together, he opined that such a grower "would never have
    . . . a gram to smoke if that were the case."
    The defense expert's testimony did not resolve the
    ambiguity.    He testified that generally fifty per cent of
    marijuana seeds develop into female plants, but that the gender
    ratio can vary by up to fifteen per cent.    For example, a cold
    floor could yield a sixty-five per cent male plant population.20
    19Tetrahydrocannabinol is the active ingredient in
    marijuana that would make the marijuana usable for the treatment
    of the defendant's medical condition.
    20The testimony also was unclear on whether the defendant
    was using seeds to grow his plants or if he was cloning them.
    Had the defendant cloned his plants, they may have been only
    female, but the testimony was ambiguous on this point.
    27
    Perhaps unsurprisingly, the most definitive statement the
    Commonwealth could provide as to projected yield was that in a
    "hypothetical situation" with twenty-two marijuana plants in a
    basement grow operation with four lights and the setup found in
    the defendant's house, the plants "would yield over [ten] ounces
    of marijuana, under the proper conditions."    Even construing the
    evidence in the light most favorable to the Commonwealth, the
    testimony as to the defendant's yield, based primarily on a
    single photograph of his plants, is too speculative for a
    rational fact finder to conclude beyond a reasonable doubt that
    the defendant intended to cultivate more than ten ounces of
    usable marijuana in a sixty-day period.
    ii.   Evidence of intent to distribute.    We next examine
    whether there was sufficient evidence of the defendant's intent
    to distribute.   "A person's . . . intent . . . is a matter of
    fact, which may not be susceptible of proof by direct evidence."
    Commonwealth v. Ellis, 
    356 Mass. 574
    , 578-579 (1970), quoting
    Commonwealth v. Holiday, 
    349 Mass. 126
    , 128 (1965).    However,
    distinguishing between drug possession for personal use and drug
    possession for distribution "is not a matter within the common
    experience of jurors," and is made all the more difficult by the
    legalization of medical, and now recreational, marijuana.
    Commonwealth v. Little, 
    453 Mass. 766
    , 769 (2009), quoting
    Commonwealth v. Grissett, 
    66 Mass. App. Ct. 454
    , 457 (2006).
    28
    Typically, "[i]ntent to distribute a drug may be inferred
    from possession of large quantities of that drug."    Commonwealth
    v. Rugaber, 
    369 Mass. 765
    , 770 (1976).   However, the legal limit
    on home cultivation, and uncertainties as to its determination
    complicate this inference.    The defendant had twenty-two plants.
    Unfortunately, the regulations do not contain a plant-based
    limit for home cultivation.   Moreover, even in the light most
    favorable to the Commonwealth, the testimony regarding the
    number of ounces the defendant's plants would actually yield was
    contradictory and speculative, as discussed above.   The
    Commonwealth's expert testified, however, that twenty-two plants
    growing in a setup like the one found in the defendant's house
    could yield over ten ounces under the right conditions.
    Although not of much use by itself in determining whether the
    marijuana grow was for personal use or distribution, this
    testimony could properly be considered along with other evidence
    relevant to the issue of intent to distribute.   As discussed,
    use of grow equipment designed to increase the yield of usable
    marijuana, in combination with a large number of plants, can
    properly be considered when evaluating intent to distribute.
    Traditionally, drug possession in the absence of drug
    paraphernalia also is probative of intent.   See Commonwealth v.
    Wilson, 
    441 Mass. 390
    , 401-402 (2004).    In the context of
    medical marijuana, this evidence must be analyzed carefully to
    29
    avoid conflating lawful activity with unlawful activity.    Cf.
    Canning, 471 Mass. at 352.   The Commonwealth's expert testified
    that marijuana users "commonly use rolling papers . . . or pipes
    [or] bongs," but, in reviewing the evidence, he did not see any
    indication that the defendant possessed these items.21   More
    specifically probative is the former girl friend's testimony
    that she did not know the defendant to be a regular marijuana
    user, and had only seen him use marijuana "a couple times."
    Although there was limited testimony as to whether the defendant
    could have cultivated any usable marijuana from his plants by
    the time of his arrest, his former girl friend's testimony
    establishes that he had some supply of marijuana, but rarely
    used it, despite his medical conditions.    Thus, her testimony
    supports a reasonable inference that the defendant did not
    cultivate the marijuana for personal use.
    Numerous plastic bags and a digital pocket scale22 were also
    located in the defendant's house, but outside of the kitchen,
    where such bags and scale would more ordinarily be found.     The
    21We note that not all medical marijuana users smoke the
    marijuana they consume. In fact, the Commonwealth's expert
    stated on direct examination that, "we're beginning to see more
    edible forms" of marijuana, as well as vaporizing.
    22Although neither Esposito nor Lewis testified that the
    scale was a digital pocket scale, this fact came out on cross-
    examination of the Commonwealth's expert.
    30
    plastic bags were, however, found on a separate floor from the
    marijuana grow, and no evidence was presented connecting them to
    the marijuana plants, making this evidence of marginal value.
    Contrast Commonwealth v. Clark, 
    446 Mass. 620
    , 624 (2006)
    (uniform packaging is evidence of intent to distribute);
    Commonwealth v. Montanez, 
    410 Mass. 290
    , 305-306 (1991) (cutting
    powder and drugs packaged in paper folders); Commonwealth v.
    LaPerle, 
    19 Mass. App. Ct. 424
    , 427-428 (1985) (cutting powder,
    wrapping paper, and scale with cocaine residue on pan).
    Although there is similarly no evidence connecting the scale to
    the marijuana grow, the Commonwealth's expert testified that
    drug dealers often possess such types of scales.23
    More significant than the bags and scale are the initial
    home invasion and the large sum of money found in the
    defendant's pocket when he was arrested.   His former girl friend
    testified that he was unemployed, and that she had seen him do
    very few tattoos in the span of their relationship.   Thus,
    finding $2,135 on his person at the time of his arrest supported
    an inference of intent to distribute.   See Sendele, 18 Mass.
    App. Ct. at 758-759 ("Very indicative is the large miscellany of
    money carried in specie by the defendant, who was otherwise
    23We also recognize that medical marijuana patients may
    need use of a scale to weigh the marijuana they grow, so as to
    ensure they do not exceed ten ounces. However, no testimony to
    that effect was admitted at trial.
    31
    confessedly without any resources and unemployed to boot").
    Contrast Commonwealth v. Sepheus, 
    468 Mass. 160
    , 166 (2014)
    (intent to distribute could not be drawn from defendant carrying
    $312, where "[t]here was no evidence that the defendant was
    unemployed and thus unlikely legitimately to have that amount of
    cash").   Moreover, the defendant told police that two men, one
    brandishing a gun, came down into his basement, the very area
    where he was growing his marijuana.   In combination with the
    Commonwealth's expert testimony that violence and theft are
    often associated with drug dealing, the defendant's account of
    the home invasion supports an inference that others had
    knowledge that he was a drug dealer, and intended to rob him.
    Taken together, the home invasion, large amount of cash
    found on the defendant, digital pocket scale, number of plants,
    and testimony that the defendant sparingly used marijuana were
    sufficient for a rational juror to find him guilty of possession
    with intent to distribute beyond a reasonable doubt.
    d.    Constitutionality.   Finally, the defendant asserts that
    the sixty-day supply limit established by the medical marijuana
    laws and corresponding regulations is unconstitutionally vague
    as applied.   Because we conclude that the erroneous jury
    instructions for unlawful cultivation created a substantial risk
    of a miscarriage of justice, and there was insufficient evidence
    of intentional cultivation of more than a sixty-day supply,
    32
    precluding retrial as to unlawful cultivation, we need not
    address this argument.    However, we note that of the fifteen
    States that currently permit home cultivation as part of their
    medical marijuana scheme, Massachusetts is the only State that
    defines its limit solely in terms of supply per period.       All
    other such States use plant-based limits.24    The only other State
    to create a home cultivation limit based on supply period,
    Washington, changed to a plant-based limit after widespread
    criticism that the prior rule created uncertainty.    See State
    Rule Clarifies 60-Day Supply of Medical Marijuana, Seattle
    Times, Oct. 3, 2008.     Moreover, even Massachusetts's own
    recreational marijuana scheme has a plant-based limit.        G. L.
    24See Colo. Const. art. XVIII, § 14(4)(a)(II) (six-plant
    limit, with no more than three mature, flowering plants
    producing usable marijuana). See also 
    Alaska Stat. § 17.37.040
    (a)(4) (six-plant limit, with no more than three
    mature, flowering plants producing usable marijuana); 
    Ariz. Rev. Stat. Ann. § 36-2801
    (a)(ii) (twelve-plant limit); 
    Cal. Health & Safety Code § 11362.77
    (a), (b) (limit of six mature or twelve
    immature plants, although patient may grow more with doctor's
    recommendation); 
    Haw. Rev. Stat. § 329-121
     (ten-plant limit);
    Me. Rev. Stat. tit. 22, § 2423-A(1)(B) (limit of six mature
    plants); 
    Mich. Comp. Laws § 333.26424
    (a) (twelve-plant limit);
    
    Mont. Code Ann. § 50-46-319
    (1)(b)(i) (limit of four mature
    plants and four seedlings); Nev. Rev. Stat. § 453A.200(3)(b)
    (twelve-plant limit); Or. Rev. Stat. § 475B.831(1)(a) (limit of
    six mature plants and twelve immature plants); R.I. Gen. Laws
    § 21-28.6-4(a) (limit of twelve mature plants); Vt. Stat. Ann.
    § 4472(14) (limit of two mature plants and seven immature
    plants); 
    Wash. Rev. Code § 69
    .51A.210(1) (six plant limit).
    Finally, see 
    N.M. Code R. § 7.34.4.8
    (A)(1) (limit of four mature
    plants and twelve seedlings).
    33
    c. 94G, § 7 (a) (2) (individuals limited to six plants,
    households limited to twelve plants).
    As is evident from the expert testimony at trial, the
    amount of usable marijuana yielded by a plant depends on a large
    number of variables, including the skill of the grower.     The
    ten-ounce rule provides some additional flexibility for patients
    who may be inept growers, unable to yield much even from a large
    number of plants but, by the same token, it makes enforcement of
    the cultivation limit all the more difficult.      Although the law
    may not be vague in many cases, such as when a defendant grows
    an acre of marijuana, without a plant-based limit, start-up home
    cultivation operations like this one may pose a vagueness
    problem.    Although we need not resolve this issue in the instant
    case, we emphasize that statutory and regulatory clarification
    would be most beneficial in this regard.
    3.     Conclusion.   The conviction of possession of marijuana
    with intent to distribute is affirmed.     The conviction of
    unlawful cultivation marijuana is reversed.
    So ordered.
    Appendix.
    Model Jury Instruction Regarding Unlawful Cultivation with
    Medical Marijuana Hardship Cultivation Registration:
    Sixty-Day Supply
    Under Massachusetts's medical marijuana act, cultivation of
    medical marijuana is expressly permitted if a person is properly
    registered to do so, and the cultivation does not exceed a
    certain amount. Here, the defendant had a valid hardship
    cultivation registration allowing him or her to cultivate up to
    ten ounces of marijuana every sixty days. It is the
    Commonwealth's burden to prove beyond a reasonable doubt that
    the defendant was cultivating more marijuana than was permitted
    by his or her hardship cultivation registration. If the
    Commonwealth fails to prove beyond a reasonable doubt that the
    defendant was cultivating more marijuana than was permitted by
    his or her hardship cultivation registration, then you must find
    the defendant not guilty.
    In order to prove the defendant guilty of this offense, the
    Commonwealth must prove four elements beyond a reasonable doubt:
    First:     That the substance in question is marijuana;
    Second:   That the defendant knowingly cultivated the
    substance;
    Third: That the defendant cultivated more than the amount
    necessary to provide a sixty-day supply of usable marijuana to
    the patient; and
    Fourth: That the defendant intended to cultivate more than
    the amount necessary to provide a sixty-day supply of usable
    marijuana to the patient.
    As to the first element, the Commonwealth is required to
    prove that the substance in question is in fact marijuana.
    Marijuana is defined to include all parts of the plant cannabis
    sativa L., whether growing or not; the seeds thereof; and resin
    extracted from any part of the plant; and every compound,
    manufacture, salt, derivative, mixture, or preparation of the
    plant, its seeds, or resin. It does not include the mature
    stalks of the plant, industrial hemp, fiber produced from the
    stalks, oil, or cake made from the seeds of the plant, any other
    compound, manufacture, salt, derivative, mixture, or preparation
    2
    of the mature stalks, except the resin extracted therefrom,
    fiber, oil, or cake or the sterilized seed of the plant which is
    incapable of germination.1 You may consider all the relevant
    evidence in the case, including the testimony of any witness who
    may have testified either to support or to dispute the
    allegation that the substance in question was marijuana.
    As to the second element, the term "cultivate" means to
    grow a plant or crop, namely marijuana.
    As to the third element, you must determine whether or not
    the defendant was cultivating more than a medical supply of
    marijuana. Under the medical marijuana act, an individual is
    permitted to produce a sixty-day supply of medical marijuana. A
    "sixty-day supply" is presumptively ten ounces of usable
    marijuana. Usable marijuana is defined as "the fresh or dried
    leaves and flowers of the female marijuana plant and any mixture
    or preparation thereof, including marijuana-infused products,
    but does not include the seedlings, seeds, stalks, or roots of
    the plant." A sixty-day supply may be greater than ten ounces,
    if the defendant's certifying physician has documented (1) the
    greater amount that constitutes a sixty-day supply and (2) the
    rationale for the defendant's sixty-day supply exceeding ten
    ounces. This documentation must be in the defendant's medical
    record and in the defendant's written certification.
    In determining whether the defendant was cultivating more
    than necessary to produce ten ounces of usable marijuana in a
    sixty-day period, you may consider the number of plants being
    cultivated, the defendant's skill at cultivation, and the
    conditions under which the plants were growing.
    As to the fourth element, the Commonwealth must prove that
    the defendant not only cultivated more than necessary for a
    sixty-day supply, but that the defendant intended to cultivate
    more than necessary for a sixty-day supply. You may find that
    the defendant acted intentionally if he or she did so
    consciously, voluntarily, and purposely, and not because of
    ignorance, mistake, or accident. It is not enough that the
    defendant's marijuana plants happen to be capable of yielding
    more than ten ounces in a sixty-day period. The Commonwealth
    must prove that the defendant intended to cultivate more than
    ten ounces of usable marijuana in a sixty-day period.
    1  Please note that this is the amended definition of
    "marihuana" in G. L. c. 94C, § 1, effective July 28, 2017.
    3
    Model Jury Instruction Regarding Unlawful Cultivation with
    Medical Marijuana Hardship Cultivation Registration:
    Nonpersonal Use
    Under Massachusetts's medical marijuana act, cultivation of
    medical marijuana is expressly permitted if a person is properly
    registered to do so, and the cultivation is for the patient's
    personal use. Here, the defendant had a valid hardship
    cultivation registration allowing him or her to cultivate
    marijuana for personal medical use. It is the Commonwealth's
    burden to prove beyond a reasonable doubt that the defendant
    cultivated marijuana in violation of his or her hardship
    cultivation registration by cultivating marijuana with the
    intent to distribute rather than solely for his or her personal
    use. If the Commonwealth fails to prove beyond a reasonable
    doubt that the defendant was cultivating marijuana with the
    intent to distribute, then you must find the defendant not
    guilty.
    In order to prove the defendant guilty of this offense, the
    Commonwealth must prove three elements beyond a reasonable
    doubt:
    First:   That the substance in question is marijuana;
    Second: That the defendant knowingly cultivated the
    substance; and
    Third: That the defendant cultivated the substance with
    the intent to distribute.
    As to the first element, the Commonwealth is required to
    prove that the substance in question is in fact marijuana.
    Marijuana is defined to include all parts of the plant cannabis
    sativa L., whether growing or not; the seeds thereof; and resin
    extracted from any part of the plant; and every compound,
    manufacture, salt, derivative, mixture, or preparation of the
    plant, its seeds, or resin. It does not include the mature
    stalks of the plant, industrial hemp, fiber produced from the
    stalks, oil, or cake made from the seeds of the plant, any other
    compound, manufacture, salt, derivative, mixture, or preparation
    of the mature stalks, except the resin extracted therefrom,
    fiber, oil, or cake or the sterilized seed of the plant which is
    4
    incapable of germination.2 You may consider all the relevant
    evidence in the case, including the testimony of any witness who
    may have testified either to support or to dispute the
    allegation that the substance in question was marijuana.
    As to the second element, the term "cultivate" means to
    grow a plant or crop, namely marijuana.
    As to the third element, if it has been proved that the
    defendant did knowingly cultivate marijuana, you will have to
    determine whether the defendant cultivated the marijuana solely
    for his or her own use, or whether the defendant intended the
    marijuana for distribution to others. If the defendant is a
    personal caregiver under the medical marijuana law, you may find
    the defendant guilty only if he or she intended to distribute
    marijuana to someone other than the patient for whom the
    defendant served as a personal caregiver.
    2  Please note that this is the amended definition of
    "marihuana" in G. L. c. 94C, § 1, effective July 28, 2017.