Since the electorate in two states has voted to legalize marijuana, there has been much discussion of the legalization of drugs. News programs have been talking about it, and the most recent Intelligence Squared US debate took up the issue. I have watched the marijuana debate with interest over the years, from its beginning as a medical drug, and now, as a legal drug. With the vote in Colorado and Washington, it has become a major issue, and the one thing I notice about it is that neither side seems to be able to find a compelling argument.
My personal view is that marijuana should not be legal. I have never used it, and I see no value in "recreational" drugs, of any kind. I do not see the need to have alcohol, tobacco/nicotine, or caffeine legal either. This is not to say that I am a prohibitionist, or seek to ban coffee, I just do not see what good these substances offer society. Alcohol can be linked to violence, traffic incidents, and death (dare I say, overdosing?). Caffeine, though I have no study to cite, can more than likely be linked to many fatal incidents on the road or at the workplace when people try to replace sleep with an upper.
Many will argue that this is a slippery slope. After all, if everything dangerous is illegal, then we would not be able to drive cars. Cars, unlike drugs, do add to society (the environmental problems are a topic for another post). My argument is purely pragmatic, and my simple question is what good comes out of having these substances legal? As of yet, I have heard nothing compelling.
The flip side to this is that I would happily ask the other side, what good comes to society by having these substances illegal? Again, not a single solid, logical argument about societal good. On one news program, a police officer was arguing that medical marijuana increase crime rates, because before it was legal for medical use in California, there were no medical marijuana dispensary break-ins. While, I have no doubt he is correct, the point could be made that before there were cars the incidence of auto theft were pretty low, which is not an argument to outlaw innovation.
In the Intelligence Squared debate (IQ2) both sides relied heavily on emotion. What if kids grew up in a world where they could walk to the corner store and buy heroine? In the current world, kids, especially black kids, get put in jail for doing something that most Americans try! Neither of these arguments are in anyway compelling to me. I do not think anyone has ever argued in favor of selling heroine to kids, so whether or not that should be legal is not really a question that warrants debate. Drug laws unfairly target minorities, but that is not an argument about the legalization of drugs, that is an argument about our broken, racist, and bigoted criminal justice system. I just read an article about how girls (female minors) get the same medical care as boys in juvenile detention, saving being asked "are you pregnant," and a couple other gender specific questions? That is clearly another issue that needs to be addressed, but it is not an argument for, or against, the legalization of any substance. In the 90 minute IQ2 debate, a panel of four experts, were unable to put together consistent, logical arguments for either stance. Both sides kept using arguments that were emotional, not logical.
Before I go to far down Mr. Spock's path, I will stop lamenting the emotional arguments, and return to the debate that people should be having. My first stop is medical marijuana. When people talk about getting high on marijuana, or using marijuana for medicinal purposes, they are primarily talking about the psychoactive compound tetrahydrocannabinol, or THC. In all the medical marijuana debates I have not heard a single argument about medical use of THC, always marijuana. This seems odd, until you realize that THC is a legal medical drug in the United States (and Canada), marketed under the brand Marinol. When the FDA approved Marinol (synthetic THC is called by the generic name dronabinol) there was concern that there would be prescription chasing, but there wasn't. This may be because if you are going to abuse prescription drugs, there are far better and more addictive options than dronabinol, like the opioids. Which begs the question, if THC is legal, then why is there a debate to legalize marijuana?
As it turns out, the cannabis plant produces more than just THC, so taking Marinol is not as "pleasant" an experience as the drug cocktail found in marijuana. It is slower acting (though presumably a dronabinol inhaler would fix that), and it has a fixed dosage when in pill form (again, this could probably be fixed with an inhaler). Lastly, Marinol is more expensive than marijuana. While this could easily become a debate about the problems of a healthcare system where drug dealers can more effectively treat the symptoms of senior citizens with cancer than oncologists, that would not be a debate about the legalization of drugs. So the debate to have medical marijuana is in fact about the cannabis plant, and not the treatment of symptoms treatable by prescription Marinol (and therefore marijuana). I actually have a hard time with this. If Marinol is not the ideal drug, then a pharmaceutical company and the FDA should create and approve a better one, or a better delivery system. Yet, I can appreciate the ridiculousness of redeveloping something that already exists.
The pro-medical marijuana campaign yet again disappoints me though. They seek to legalize it for medical use, and bypass the FDA. The California Medical Association endorses marijuana use for medicinal purposes, but an endorsement is not the intensive testing that FDA approval requires. While the FDA does have problems, legalizing a drug by ballot initiative, rather than approval by the FDA defeats the purpose of living in a republic.
Historical evidence of marijuana use suggests that it is in fact safe. In looking for a material safety data sheet for THC I found one for THC in methanol. The methanol was far more dangerous than the THC, which lacked even basic toxicology information. The DEA is partly to blame for that, as controlled substances are often mixed for laboratory use with a chemical that would kill the user before they were able to enjoy any of the drug's effects. I suppose that does deter abuse, but anyone who can get the substance has the ability to refine it. Yet, the point remains that THC is so benign that, according to the material safety data sheet, it is essential non-toxic. This means that, unfortunately for everyone who are sick of hearing this (including myself), marijuana is less dangerous than alcohol.
Evidence of the non-harmful effects of marijuana is compelling. Though arguing that it is worse than alcohol approaches arguing for the existence of the Easter Bunny, a comparison to alcohol is not be a sound argument for legalization! It is a compelling prohibitionist argument. If alcohol is more dangerous than illegal drugs, then alcohol should be illegal. It all starts getting pretty circular at this point.
My first proposition will probably not please anyone, but I think it is worth consideration. If Marinol is legal, then there is no rush to make medical marijuana legal. Thus, Marinol is a perfect example that the medical system needs to be fixed so that the American medical system can compete with drug dealers at soothing the pain of the terminally ill. While Congress debates healthcare reform, the FDA can find the safest, suitable ways to use marijuana medically. Once the FDA has issued a ruling, marijuana (or an acceptably similar synthetic alternative) can be prescribed by physicians to patients.
With an FDA approved marijuana and delivery system, I see limited reason why people who want marijuana could not get it, after speaking with their physician. I will go out on a limb, and say that "recreational" users of marijuana are self-medicating for malaise. Let these people talk to health care providers about their malaise. It could be that speaking with a mental health clinician would be better treatment than a drug. Perhaps some other activity would help as well, say exercise, enough sleep, or proper nutrition. If the physician and patient agree that the best treatment is marijuana, then the physician can help choose the delivery system. Obviously a diabetic should not be eating brownies, and someone who has a history of tobacco use should not be smoking. A physician is qualified to consider the overall health of the individual, and their situation before the patient starts looking for illicit ways to treat their own condition.
Lastly under this system, to procure one's medical marijuana one would not go to a dispensary with lava lamps and tie-dye t-shirts. Nor would they go to some warm coffee shop like the Netherlands. They would queue-up with the coughing and sniveling masses, to be issued their medication from some judgmental old man who stands on an elevated platform, behind a counter, looking down at everyone through his ill-fitting bifocals. (I have had some very warm and friendly pharmacists of all races and genders, but the field does seem to attract grumpy old men.)
I imagine that both sides of the debate are cringing at my suggestion. The marijuana users do not, in fact, want to be treated like they are ill, and those opposed to the drug are imagining street gangs rampaging through their big box store pharmacy to score marijuana (rather than the previously mentioned much stronger other drugs they already stock). To the anti-marijuana crowd I ask if this is really any different from Prozac or other SSRIs? To the marijuana users I would like to hear an honest argument that they are not self-medicating. Many of my friends are going to argue with me on this, but using drugs is not recreational. Socializing is recreational, but using a social lubricant to do so (including alcohol) is treating the discomfort of this activity. Just like the athlete who uses pain killers when their sport causes an injury, drug use is not recreational, but treats a negative effect of the recreational activity. (A connoisseur of products that happen to contain drugs (e.g. wine, coffee, chocolate, etc.) is a reasonable exception, the motive is the key issue.)
I have now acknowledged that I do not support legalization, that the medical marijuana debate is little more than a sham, and that a form of medical marijuana could work, now for why marijuana should be illegal. One of the things I most hate is being wrong. Being wrong is something that makes me want to use drugs (for treatment of those feelings). I choose to deal with it in other ways, and usually I try to just stop being wrong. Thus, I cringe whenever I find myself siding with those arguing that marijuana should be illegal. The arguments are flatly ludicrous. Society will not collapse if marijuana is legalized, violent crime will not increase, and children will not become evil. Marijuana has been in society for much longer than it has been illegal. Some children will obtain marijuana illegally, and, like almost all other life experiences, most of those who do will do it in college first.
As for violent crime, there seems to be no correlation between homicide rate and marijuana use (though it can be tied to the illegal drug trade). At the end of this post is a chart of cannabis use by percent of the population, and intentional homicide. I will highlight a couple of countries here though, just for argument. For example, in Canada 12.6% of the population report using cannabis, and the homicide rate is 1.8. In the USA cannabis use is higher, 13.7%, as is the homicide rate, 5.4. If cannabis use is correlated to homicide rate based on these two countries, then for every 1% increase in population using cannabis, homicide rate increases by a factor of three! Sure this is oversimplified, but it means that Palau, with a cannabis use rate of 24.2% should have an astronomical homicide incidence. They don't. Palau's homicide rate is 0.0.
The "gateway drug" is another argument that is illogical. This post hoc argument falls apart for me on keeping marijuana illegal. First, of all the people I know who have used marijuana, to my knowledge they all used alcohol first. In the IQ2 debate one panelist argues that mother's milk is the ultimate gateway substance by this argument. While I will admit that once a person makes contact with someone who sells illegal drugs, they are more likely to be exposed to illegal drugs of all varieties. This admission seems to make the gateway drug argument a strong case to decriminalize marijuana.
In my attempt to be correct as much as possible, it seems that the only way out of the marijuana issue is a dance of rhetoric. If there is no logical argument to keep it illegal, and no logical argument to make it legal (moral and emotional arguments are not, generally, logic based), there must be a middle ground. To me, that middle ground is decriminalizing marijuana. This same argument can be made for some other drugs as well, for example cocaine is illegal in most places, the coca leaf is legal, and responsibly used, in many. By leaving a relatively cheap and harmless drug legal, the much more dangerous, much more expensive drug becomes less desirable, or so the argument goes. With the reduced demand for the dangerous drug, and reduced illegal activity, everyone is safer.
Some might say that is an argument for legalization, but it really is not. It might have been an argument for intelligently creating drug laws in the first place, but it seems too late for that. Further, in the decriminalization argument, our inability to create a fair criminal justice system is on the table. If police target minorities unfairly (at the insistence of white voters) for crimes that are not dangerous, then we should change the laws such that everyone is less likely to be victims to society's irrational fears. This requires some very big admissions though. In order for decriminalizing anything to work society must admit two things. First, we, owing to our own desires, are unable to regulate an activity that collectively we acknowledge has no positive effect on society. Second, that we are actually a lot less scared than we want to be.
The first is probably harder to admit, but much easier to accomplish. The second idea I first heard in a NPR interview. The interviewee argued that we need to separate the criminals who we are mad at, and the people we are scared of. We are scared of rapists and murders, for very good reason. Violent people need to be separated from society for the benefit of society. Other criminals need to be punished, say, those who evade taxes, or sell liquor to minors, but we are not afraid of these people, so they should not be sent to prison. Why? Because prison is very expensive.
According to this press release from the Drug Policy Alliance, New York spent $75 million on low-level arrests in 2011, and has spent $600 million on these arrests over the past decade. With all the talk of the deficit, are we really even that mad at people who use marijuana at the lowest level? I am not. I am friends with a lot of people who could be prosecuted for these "crimes," and while we do not agree on the legality of this substance, I cannot even begin to say that I think they should be prosecuted for it. If I think of my friends that way, then I cannot think of strangers any differently. I have to admit that I am not scared of people using marijuana at this "casual" or "recreational" level.
My argument for decriminalization is simply this. There is at most a dearth of evidence to keep marijuana illegal, and an equal paucity of evidence to legalize it. While I have no desire to see marijuana legalized, I have no logical argument for it to not be decriminalized. Decriminalization of minor offenses, like low-level marijuana use, would help to make the criminal justice system less unfair. Decriminalization also makes sense from a financial standpoint. The people of New York spent $75 million dollars last year enforcing a law that no one seems to have a logical argument for, that could be spent on a program that has some social good.
The following chart compares homicide rates compiled by the United Nations Office on Drugs and Crime for 2008 with Cannabis use by country, which is also compiled by the UNODC, but was obtained from Wikipedia owing to the horrible PDF format that I found directly from the UNODC. There are some huge issues with this massive oversimplification. To begin, homicide rates are all from 2008, but cannabis use is from a multitude of years. The assumption that the rates are similar between years is made for simplicity. Second, obviously there are many factors that affect homicide rate. For example, very high homicide rates in failed states or war zones can be correlated to little other than those. Even under those circumstances interesting numbers are present, for example, Colombia has a horrific homicide rate, but marijuana use is actually fairly low. A clear example showing that drug use is actually much less bad than the illegal drug trade.
To use the chart, note that the scale is different for the two series. Homicide incidence is given per 100,000 people, and cannabis use is percent (or an incidence per 100 people). Also, the X-axis is capped at 30, but several nations have homicide incidence that exceed thirty, in which case the incidence is given as a label along the Y-axis, e.g. Belize. Cannabis use is given for individual countries within the UK, but homicide incidence is given for all of the UK. As such, the homicide incidence for the entire country is compared to the cannabis use for England and Wales, Northern Ireland, and Scotland separately. Lastly, if you want the Excel spreadsheet for your own use, I am happy to send it to you, just ask.
My personal view is that marijuana should not be legal. I have never used it, and I see no value in "recreational" drugs, of any kind. I do not see the need to have alcohol, tobacco/nicotine, or caffeine legal either. This is not to say that I am a prohibitionist, or seek to ban coffee, I just do not see what good these substances offer society. Alcohol can be linked to violence, traffic incidents, and death (dare I say, overdosing?). Caffeine, though I have no study to cite, can more than likely be linked to many fatal incidents on the road or at the workplace when people try to replace sleep with an upper.
Many will argue that this is a slippery slope. After all, if everything dangerous is illegal, then we would not be able to drive cars. Cars, unlike drugs, do add to society (the environmental problems are a topic for another post). My argument is purely pragmatic, and my simple question is what good comes out of having these substances legal? As of yet, I have heard nothing compelling.
The flip side to this is that I would happily ask the other side, what good comes to society by having these substances illegal? Again, not a single solid, logical argument about societal good. On one news program, a police officer was arguing that medical marijuana increase crime rates, because before it was legal for medical use in California, there were no medical marijuana dispensary break-ins. While, I have no doubt he is correct, the point could be made that before there were cars the incidence of auto theft were pretty low, which is not an argument to outlaw innovation.
In the Intelligence Squared debate (IQ2) both sides relied heavily on emotion. What if kids grew up in a world where they could walk to the corner store and buy heroine? In the current world, kids, especially black kids, get put in jail for doing something that most Americans try! Neither of these arguments are in anyway compelling to me. I do not think anyone has ever argued in favor of selling heroine to kids, so whether or not that should be legal is not really a question that warrants debate. Drug laws unfairly target minorities, but that is not an argument about the legalization of drugs, that is an argument about our broken, racist, and bigoted criminal justice system. I just read an article about how girls (female minors) get the same medical care as boys in juvenile detention, saving being asked "are you pregnant," and a couple other gender specific questions? That is clearly another issue that needs to be addressed, but it is not an argument for, or against, the legalization of any substance. In the 90 minute IQ2 debate, a panel of four experts, were unable to put together consistent, logical arguments for either stance. Both sides kept using arguments that were emotional, not logical.
Before I go to far down Mr. Spock's path, I will stop lamenting the emotional arguments, and return to the debate that people should be having. My first stop is medical marijuana. When people talk about getting high on marijuana, or using marijuana for medicinal purposes, they are primarily talking about the psychoactive compound tetrahydrocannabinol, or THC. In all the medical marijuana debates I have not heard a single argument about medical use of THC, always marijuana. This seems odd, until you realize that THC is a legal medical drug in the United States (and Canada), marketed under the brand Marinol. When the FDA approved Marinol (synthetic THC is called by the generic name dronabinol) there was concern that there would be prescription chasing, but there wasn't. This may be because if you are going to abuse prescription drugs, there are far better and more addictive options than dronabinol, like the opioids. Which begs the question, if THC is legal, then why is there a debate to legalize marijuana?
As it turns out, the cannabis plant produces more than just THC, so taking Marinol is not as "pleasant" an experience as the drug cocktail found in marijuana. It is slower acting (though presumably a dronabinol inhaler would fix that), and it has a fixed dosage when in pill form (again, this could probably be fixed with an inhaler). Lastly, Marinol is more expensive than marijuana. While this could easily become a debate about the problems of a healthcare system where drug dealers can more effectively treat the symptoms of senior citizens with cancer than oncologists, that would not be a debate about the legalization of drugs. So the debate to have medical marijuana is in fact about the cannabis plant, and not the treatment of symptoms treatable by prescription Marinol (and therefore marijuana). I actually have a hard time with this. If Marinol is not the ideal drug, then a pharmaceutical company and the FDA should create and approve a better one, or a better delivery system. Yet, I can appreciate the ridiculousness of redeveloping something that already exists.
The pro-medical marijuana campaign yet again disappoints me though. They seek to legalize it for medical use, and bypass the FDA. The California Medical Association endorses marijuana use for medicinal purposes, but an endorsement is not the intensive testing that FDA approval requires. While the FDA does have problems, legalizing a drug by ballot initiative, rather than approval by the FDA defeats the purpose of living in a republic.
Historical evidence of marijuana use suggests that it is in fact safe. In looking for a material safety data sheet for THC I found one for THC in methanol. The methanol was far more dangerous than the THC, which lacked even basic toxicology information. The DEA is partly to blame for that, as controlled substances are often mixed for laboratory use with a chemical that would kill the user before they were able to enjoy any of the drug's effects. I suppose that does deter abuse, but anyone who can get the substance has the ability to refine it. Yet, the point remains that THC is so benign that, according to the material safety data sheet, it is essential non-toxic. This means that, unfortunately for everyone who are sick of hearing this (including myself), marijuana is less dangerous than alcohol.
Evidence of the non-harmful effects of marijuana is compelling. Though arguing that it is worse than alcohol approaches arguing for the existence of the Easter Bunny, a comparison to alcohol is not be a sound argument for legalization! It is a compelling prohibitionist argument. If alcohol is more dangerous than illegal drugs, then alcohol should be illegal. It all starts getting pretty circular at this point.
My first proposition will probably not please anyone, but I think it is worth consideration. If Marinol is legal, then there is no rush to make medical marijuana legal. Thus, Marinol is a perfect example that the medical system needs to be fixed so that the American medical system can compete with drug dealers at soothing the pain of the terminally ill. While Congress debates healthcare reform, the FDA can find the safest, suitable ways to use marijuana medically. Once the FDA has issued a ruling, marijuana (or an acceptably similar synthetic alternative) can be prescribed by physicians to patients.
With an FDA approved marijuana and delivery system, I see limited reason why people who want marijuana could not get it, after speaking with their physician. I will go out on a limb, and say that "recreational" users of marijuana are self-medicating for malaise. Let these people talk to health care providers about their malaise. It could be that speaking with a mental health clinician would be better treatment than a drug. Perhaps some other activity would help as well, say exercise, enough sleep, or proper nutrition. If the physician and patient agree that the best treatment is marijuana, then the physician can help choose the delivery system. Obviously a diabetic should not be eating brownies, and someone who has a history of tobacco use should not be smoking. A physician is qualified to consider the overall health of the individual, and their situation before the patient starts looking for illicit ways to treat their own condition.
Lastly under this system, to procure one's medical marijuana one would not go to a dispensary with lava lamps and tie-dye t-shirts. Nor would they go to some warm coffee shop like the Netherlands. They would queue-up with the coughing and sniveling masses, to be issued their medication from some judgmental old man who stands on an elevated platform, behind a counter, looking down at everyone through his ill-fitting bifocals. (I have had some very warm and friendly pharmacists of all races and genders, but the field does seem to attract grumpy old men.)
I imagine that both sides of the debate are cringing at my suggestion. The marijuana users do not, in fact, want to be treated like they are ill, and those opposed to the drug are imagining street gangs rampaging through their big box store pharmacy to score marijuana (rather than the previously mentioned much stronger other drugs they already stock). To the anti-marijuana crowd I ask if this is really any different from Prozac or other SSRIs? To the marijuana users I would like to hear an honest argument that they are not self-medicating. Many of my friends are going to argue with me on this, but using drugs is not recreational. Socializing is recreational, but using a social lubricant to do so (including alcohol) is treating the discomfort of this activity. Just like the athlete who uses pain killers when their sport causes an injury, drug use is not recreational, but treats a negative effect of the recreational activity. (A connoisseur of products that happen to contain drugs (e.g. wine, coffee, chocolate, etc.) is a reasonable exception, the motive is the key issue.)
I have now acknowledged that I do not support legalization, that the medical marijuana debate is little more than a sham, and that a form of medical marijuana could work, now for why marijuana should be illegal. One of the things I most hate is being wrong. Being wrong is something that makes me want to use drugs (for treatment of those feelings). I choose to deal with it in other ways, and usually I try to just stop being wrong. Thus, I cringe whenever I find myself siding with those arguing that marijuana should be illegal. The arguments are flatly ludicrous. Society will not collapse if marijuana is legalized, violent crime will not increase, and children will not become evil. Marijuana has been in society for much longer than it has been illegal. Some children will obtain marijuana illegally, and, like almost all other life experiences, most of those who do will do it in college first.
As for violent crime, there seems to be no correlation between homicide rate and marijuana use (though it can be tied to the illegal drug trade). At the end of this post is a chart of cannabis use by percent of the population, and intentional homicide. I will highlight a couple of countries here though, just for argument. For example, in Canada 12.6% of the population report using cannabis, and the homicide rate is 1.8. In the USA cannabis use is higher, 13.7%, as is the homicide rate, 5.4. If cannabis use is correlated to homicide rate based on these two countries, then for every 1% increase in population using cannabis, homicide rate increases by a factor of three! Sure this is oversimplified, but it means that Palau, with a cannabis use rate of 24.2% should have an astronomical homicide incidence. They don't. Palau's homicide rate is 0.0.
The "gateway drug" is another argument that is illogical. This post hoc argument falls apart for me on keeping marijuana illegal. First, of all the people I know who have used marijuana, to my knowledge they all used alcohol first. In the IQ2 debate one panelist argues that mother's milk is the ultimate gateway substance by this argument. While I will admit that once a person makes contact with someone who sells illegal drugs, they are more likely to be exposed to illegal drugs of all varieties. This admission seems to make the gateway drug argument a strong case to decriminalize marijuana.
In my attempt to be correct as much as possible, it seems that the only way out of the marijuana issue is a dance of rhetoric. If there is no logical argument to keep it illegal, and no logical argument to make it legal (moral and emotional arguments are not, generally, logic based), there must be a middle ground. To me, that middle ground is decriminalizing marijuana. This same argument can be made for some other drugs as well, for example cocaine is illegal in most places, the coca leaf is legal, and responsibly used, in many. By leaving a relatively cheap and harmless drug legal, the much more dangerous, much more expensive drug becomes less desirable, or so the argument goes. With the reduced demand for the dangerous drug, and reduced illegal activity, everyone is safer.
Some might say that is an argument for legalization, but it really is not. It might have been an argument for intelligently creating drug laws in the first place, but it seems too late for that. Further, in the decriminalization argument, our inability to create a fair criminal justice system is on the table. If police target minorities unfairly (at the insistence of white voters) for crimes that are not dangerous, then we should change the laws such that everyone is less likely to be victims to society's irrational fears. This requires some very big admissions though. In order for decriminalizing anything to work society must admit two things. First, we, owing to our own desires, are unable to regulate an activity that collectively we acknowledge has no positive effect on society. Second, that we are actually a lot less scared than we want to be.
The first is probably harder to admit, but much easier to accomplish. The second idea I first heard in a NPR interview. The interviewee argued that we need to separate the criminals who we are mad at, and the people we are scared of. We are scared of rapists and murders, for very good reason. Violent people need to be separated from society for the benefit of society. Other criminals need to be punished, say, those who evade taxes, or sell liquor to minors, but we are not afraid of these people, so they should not be sent to prison. Why? Because prison is very expensive.
According to this press release from the Drug Policy Alliance, New York spent $75 million on low-level arrests in 2011, and has spent $600 million on these arrests over the past decade. With all the talk of the deficit, are we really even that mad at people who use marijuana at the lowest level? I am not. I am friends with a lot of people who could be prosecuted for these "crimes," and while we do not agree on the legality of this substance, I cannot even begin to say that I think they should be prosecuted for it. If I think of my friends that way, then I cannot think of strangers any differently. I have to admit that I am not scared of people using marijuana at this "casual" or "recreational" level.
My argument for decriminalization is simply this. There is at most a dearth of evidence to keep marijuana illegal, and an equal paucity of evidence to legalize it. While I have no desire to see marijuana legalized, I have no logical argument for it to not be decriminalized. Decriminalization of minor offenses, like low-level marijuana use, would help to make the criminal justice system less unfair. Decriminalization also makes sense from a financial standpoint. The people of New York spent $75 million dollars last year enforcing a law that no one seems to have a logical argument for, that could be spent on a program that has some social good.
The following chart compares homicide rates compiled by the United Nations Office on Drugs and Crime for 2008 with Cannabis use by country, which is also compiled by the UNODC, but was obtained from Wikipedia owing to the horrible PDF format that I found directly from the UNODC. There are some huge issues with this massive oversimplification. To begin, homicide rates are all from 2008, but cannabis use is from a multitude of years. The assumption that the rates are similar between years is made for simplicity. Second, obviously there are many factors that affect homicide rate. For example, very high homicide rates in failed states or war zones can be correlated to little other than those. Even under those circumstances interesting numbers are present, for example, Colombia has a horrific homicide rate, but marijuana use is actually fairly low. A clear example showing that drug use is actually much less bad than the illegal drug trade.
To use the chart, note that the scale is different for the two series. Homicide incidence is given per 100,000 people, and cannabis use is percent (or an incidence per 100 people). Also, the X-axis is capped at 30, but several nations have homicide incidence that exceed thirty, in which case the incidence is given as a label along the Y-axis, e.g. Belize. Cannabis use is given for individual countries within the UK, but homicide incidence is given for all of the UK. As such, the homicide incidence for the entire country is compared to the cannabis use for England and Wales, Northern Ireland, and Scotland separately. Lastly, if you want the Excel spreadsheet for your own use, I am happy to send it to you, just ask.