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Medical Marijuana Means More Crime?

    April 1, 2014
    Mike Tuttle
    Comments are off for this post.

Last year, a study was published, and reported on by McClatchey, that showed that marijuana was linked to crime more often than other commonly-abused substances. For example, the study reported, eighty percent of the adult males that had been arrested in Sacramento, California had tested positive for one or more drugs, most commonly marijuana.

White House “drug czar”, Gil Kerlikowske, often cites studies like this, warning of the dangers of legalizing marijuana, even for medicinal purposes. However, Gil Kerlikowske often makes a common college freshman argument mistake in this regard: he confuses “correspondence” with “causality.”

Just because two things are commonly found together (correspondence) odes not mean that one caused the other (causality). For example, there may be a high incidence of chocolate milk consumption among school children with low test scores. But to assume that drinking chocolate milk causes low test scores would be a fallacy. Lots of school kids drink chocolate milk. It’s available at the school, their parents aren’t around, they like it, they drink it. So do lots of high-scoring kids.

The question then is whether the use of drugs, especially marijuana, leads to crime.

Enter a new study that aims to get to the bottom of the correspondence between medical marijuana legalization and any potential crime increase. The study stated its aim this way:

Debate has surrounded the legalization of marijuana for medical purposes for decades. Some have argued medical marijuana legalization (MML) poses a threat to public health and safety, perhaps also affecting crime rates. In recent years, some U.S. states have legalized marijuana for medical purposes, reigniting political and public interest in the impact of marijuana legalization on a range of outcomes.

And what did they look at to determine their answers?

Relying on U.S. state panel data, we analyzed the association between state MML and state crime rates for all Part I offenses collected by the FBI.

Results did not indicate a crime exacerbating effect of MML on any of the Part I offenses. Alternatively, state MML may be correlated with a reduction in homicide and assault rates, net of other covariates.

These findings run counter to arguments suggesting the legalization of marijuana for medical purposes poses a danger to public health in terms of exposure to violent crime and property crimes.

One revealing fact that this study pointed out was that other studies “found a relationship between marijuana use and subsequent arrest, although once the authors removed all types of drug charges from the models, the relationship was no longer significant.”

In other words, yes there were more arrests of people who use marijuana. But most of those arrests were for HAVING the marijuana, not for some other crime.

With the easing of national opinions, not just on medical marijuana, but also on recreational use, these kinds of questions will go on being debated for some time to come.

Image via Wikimedia Commons


  • Brian Kelly

    Quite simply, the answer obviously is NO, it doesn’t!

    It’s a No-Brainer!

    When a loved one is in pain, wasting away unable to eat, and needs this marvelous herb in order to increase their appetite, reduce the overwhelming pain, and live as as healthy and happily as they can with the time they have left, let’s have the compassion to allow them to have it.

    Stop treating Medical Marijuana Patients like second rate citizens and common criminals by forcing them to the dangerous black market for their medicine.

    Risking incarceration to obtain the medicine you need is no way to be forced to live.

    Support Medical Marijuana Now!

    “[A] federal policy that prohibits physicians from alleviating suffering by prescribing marijuana for seriously ill patients is misguided, heavy-handed, and inhumane.” — Dr. Jerome Kassirer, “Federal Foolishness and Marijuana,” editorial, New England Journal of Medicine, January 30, 1997

    “[The AAFP accepts the use of medical marijuana] under medical supervision and control for specific medical indications.” — American Academy of Family Physicians, 1989, reaffirmed in 2001

    “[We] recommend … allow[ing] [marijuana] prescription where medically appropriate.” — National Association for Public Health Policy, November 15, 1998

    “Therefore be it resolved that the American Nurses Association will: — Support the right of patients to have safe access to therapeutic marijuana/cannabis under appropriate prescriber supervision.” — American Nurses Association, resolution, 2003

    “The National Nurses Society on Addictions urges the federal government to remove marijuana from the Schedule I category immediately, and make it available for physicians to prescribe. NNSA urges the American Nurses’ Association and other health care professional organizations to support patient access to this medicine.” — National Nurses Society on Addictions, May 1, 1995

    “[M]arijuana has an extremely wide acute margin of safety for use under medical supervision and cannot cause lethal reactions … [G]reater harm is caused by the legal consequences of its prohibition than possible risks of medicinal use.” — American Public Health Association, Resolution #9513, “Access to Therapeutic Marijuana/Cannabis,” 1995

    “When appropriately prescribed and monitored, marijuana/cannabis can provide immeasurable benefits for the health and well-being of our patients … We support state and federal legislation not only to remove criminal penalties associated with medical marijuana, but further to exclude marijuana/cannabis from classification as a Schedule I drug.” — American Academy of HIV Medicine, letter to New York Assemblyman Richard Gottfried, November 11, 2003