HS 11350 – California Possession of a Controlled Substance

Possessing controlled substances without a prescription is a crime in California. That crime became less serious after the passage of Proposition 47 but a conviction still has significant consequences.

What the Government Must Prove


  • unlawfully possessed a controlled substance;
  • knew of its presence;
  • knew that was a controlled substance; and
  • possessed a usable amount.

A controlled substance is a regulated drug that has been placed on a schedule of controlled substances by State of California. Cocaine and heroin are examples of controlled substances. Section 11350 applies to many drugs while other drug possession offenses are criminalized in other sections of the Health and Safety Code. Marijuana is governed by a different set of laws.

Unlawful Possession Of a Controlled Substance

drug lawyerKnowledge

The phrase “knew of its presence” protects people who possess a drug inadvertently. If someone left cocaine in your car and you did not know it was there, you did not violate section 11350. If you know that a substance is in your possession but do not know it is a controlled substance, you are not violating the law.

On the other hand, you do not need to know the specific nature of the controlled substance. If you know the drug is a controlled substance but believe it to be cocaine and it turns out to be heroin, you have still violated section 11350.

Usable amount

The requirement that possession must be of a “usable amount” is intended to protect you from prosecution if you are found with a baggie that has trace amounts of the drug. “Usable” does not mean “enough to get you high” but it does mean “enough to use.”

Understanding “possession”

Section 11350 is intended to criminalize possession for personal use, although the government is not required to prove that you intended to use the drug. It is enough to prove that you possessed it.

There are three ways to possess a controlled substance. The way in which you are accused of possessing the drug may have an impact on the defenses you can raise in your case.

Actual possession

Actual possession means that you either had the drug on your person or that you exercised direct physical control of the drug. For instance, if you place the drug in the glove compartment of a car you are driving, you are in actual possession of the drug.

Constructive possession

Constructive possession means that you had the right to control the drug even if it was not in your actual possession. For example, if you gave the drug to a friend to hold for you and were entitled to have the drug returned upon request, you constructively possessed the drug.

Joint possession

Joint possession means that the drug was possessed by two or more people at the same time. For example, if you and your friend pool your money to buy a quantity of drugs that you intend to share, you are jointly possessing those drugs.

Penalties for Possession of a Controlled Substance

HS 11350 consequencesAfter November 4, 2014, Proposition 47 made the possession of controlled substance a misdemeanor. The amount of jail time for this drug crime is now one year.

The revision of the law made by Proposition 47 applies to controlled substances criminalized by section 11350 and to other controlled substances, including methamphetamine, that are criminalized by other sections of California law. The only exceptions apply to possession by certain offenders with past convictions for a narrow range of violent offenses and to possession by people who are required to register as sex offenders.

Proposition 47 gives individuals accused of possessing illicit drugs more options than they had under the prior law. Misdemeanor charges allow those who are accused of the crime to seek drug diversion as an alternative to a jail sentence or probation. Since the purpose of Proposition 47 is to channel persons who possess drugs into treatment rather than prison, prosecutors and courts should now be more receptive to the argument that treatment, not punishment, is the best outcome.

Any drug conviction carries the potential for additional consequences. Drug convictions can make it more difficult to obtain certain jobs, to enlist in the military, or to obtain professional licenses and permits. The change in the law is helpful but it does not mean that a California drug charge should not be taken seriously. You should always contact an attorney to find out whether a conviction can be avoided in your case.

Defenses to the Charge You Should Consider

  • I had a valid prescription (or the prosecution cannot prove beyond a reasonable doubt that I did not have a prescription).
  • The drugs were planted by someone with a grudge against me. I did not know they were there.
  • The drugs were left in my house or car by someone else. I did not know they were there.
  • I did not know that the package someone gave me contained a controlled substance.
  • I had no drugs on my person. The witness who claims the drugs were mine is lying to protect himself or someone else.
  • I was trying to buy a controlled substance but the sale was never completed so I did not actually possess it.
  • I was near some people who were in possession of controlled substances but I had no right to use or control the drugs.
  • The substance was not a controlled substance.
  • Whether or not I committed the crime, the evidence cannot be used against me because it was obtained by means of an illegal search or seizure.

How Our Defense Attorneys Can Help

If you’re worried about your drug crime offense and would like some help, we’re here for you. We’ve assisted countless drug crime defendants with their cases and are standing by to help you through this difficult time.

These defenses and others can be raised in an appropriate case by an experienced drug crime attorney to help you avoid a conviction or to put you in a better position to bargain for a reasonable outcome. Any time you are arrested for possession of a controlled substance, you should talk to a lawyer about the defenses that can be raised in your case.

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Note: The comments below are not regulated by our firm. We do not advise sharing personal details about your case on a public forum.

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  • sandra

    if H&S 11350 is my controling case which placed me on probation and now has been closed due to prop 47 does my probation continue

    • Randy Collins

      Hi Sandra,

      Prop 47 affects a lot of drug crime cases. I suggest contacting a drug crime defense lawyer in the County you’re facing charges in. Attorneys with experience in your county will have experience with your specific court and, most likely, your specific District Attorney. Many offer free consultations that you can use to get your specific questions answered. Please do not post any specifics about your case on a public forum as it may be found later by other parties. Also, this should not be considered legal advice or the formation of an attorney-client relationship.

      Best of luck to you,


  • 1curious

    Does possession constitute use? If a person uses a schedule 1 drug (ingests, sniffs, shoot up) but never bought it, sold it, or had it on their person/in their car… as in, someone else gives them a drug, they take it, does this count as possession? Are all drug users criminals?

    • Randy Collins


      If you’re facing possession charges and have questions that you need answered, I suggest contacting a drug crime defense lawyer in the County for which you are facing charges. Many offer free consultations that you can use to get information specific to your case.

      Best of luck to you,


  • Richard Fox

    What about cold medicine my son was picked up in February for being under the influence of a narcotic controlled substance and ppossession of a non narcotic controlled substance the latter of which was over the counter cold medicine in aRichard package w maybe ten doses as he had a cold at that time I gave him legal over the counter medicine he was charged for this I was unaware that otc cold medicine in that amount was a crime in san diego being under the influence should have gotten him busted but being sick and taking otc meds I was unaware that these were illegal

    • AttorneyRandyCollins

      Hi Richard,

      Authorities are always on the lookout for those who engage in “smurfing”; a process by which meth manufacturers utilize the services of everyday people to obtain large amounts of the over-the-counter medicines they need to make meth. I suggest contacting an attorney you trust that has experience handling cases in the area for which your son is facing charges for a free case evaluation. Each situation is different and requires a full evaluation. Also, this should not be considered legal advice or the formation of an attorney-client relationship.

      Best of luck to you,


  • Jose maldonado

    What if somebody i know signed for possesion of a controlled substance and was given a date for probation but never showed up and now is on the run this happened around may 2014 what would most likely be the outcome if they turnes them selfs in.

  • Jade Diquattro

    I have a felony on my record from a single possession charge of .6 of a gram of heroin, since the law changed to it only being a misdemeanor, can I get the felony charge off my record?

  • Erin Jayne

    I know someone who got arrested for posssaion of 2.9 grams of cocaine. Person keeps getting offered 4 years in county prison. Time already done has been 4 months. If case goes to trial and they lose, person was told they can face up to 8 years. Person already has a domestic violence charge. They are trying to get it lowered to less time/misdemeanor and get out of jail soon. Does this sound correct? How does the time jump up to 8 years if the case doesn’t win?

    • Jerry

      They use the domestic as a violent prior and double up the sentence. They can be real bastards about that.

  • Shaun

    I have a felony drug posession charge and I’m looking at enlisting into the military. They recently lightened their stance on drugs for waivers but not for cocaine. My understanding is that once it is reduced at the state level it will also apply federally…does anyone know the answer to this?