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Impact Of Marijuana Legalization On Crime Reduction Is Being Underestimated, New Study Finds

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Studies have repeatedly identified an association between the legalizing marijuana and reductions in crime—but the impact of the policy change is being significantly understated because of limitations in the research methodology, a new paper co-authored by a federal official asserts.

Most studies looking at crime and cannabis rely on FBI data sourced from local police departments across the country. But reporting that data to the federal agency is entirely voluntary, leaving knowledge gaps that have underplayed the extent to which legalizing medical cannabis reduces violent and property crime.

That’s according to researchers from the U.S. Department of Agriculture’s (USDA) Economic Research Service and Appalachian State University, who published a working paper with their findings this month.

“U.S. drug policy presumes prohibition reduces crime. Recently states have enacted medical marijuana laws creating a natural experiment to test this hypothesis but is impeded by severe measurement error with available data,” the abstract states.

To account for those shortcomings, the researchers developed “a novel imputation procedure to reduce measurement error bias and estimate significant reductions in violent and property crime rates, with heterogeneous effects across and within states and types of crime, contradicting drug prohibition policy.”

“We demonstrate uncorrected measurement error or assuming homogeneous policy effects leads to underestimation of crime reduction from ending marijuana prohibition,” the authors said in the paper, which is titled, “Smoke and Fears: The Effects of Marijuana Prohibition on Crime.”

To improve upon existing research, the study authors said they used a “multiple imputation procedure for agency-level crime data to fill in the gaps in the [Uniform Crime Reporting] data that accounts for the inherent uncertainty in these imputed values in the subsequent statistical analysis.”

“Our results indicate that [medical marijuana laws] result in significant reductions in both violent and property crime rates, with larger effects in Mexican border states,” they wrote. “While these results for violent crime rates are consistent with previously reported evidence, we are the first paper to report such an effect on property crime as well. Moreover, the estimated effects of MMLs on property crime rates are substantially larger, which is not surprising given property crimes are more prevalent.”

While the study specifies that the USDA’s official’s involvement in the study “should not be construed to represent” the government’s position on the issue, it’s notable that an agency representative even participated and effectively reached the conclusion that the theory that criminalizing drugs—as the federal government has done for decades—reduces crime seems to be unfounded.

Other data has similarly challenged the notion that prohibition reduces crime.

In 2020, researchers looked at how adult-use marijuana legalization in Washington and Colorado affected crime rates in neighboring states, and the resulting study determined that passage of recreational cannabis laws may have actually reduced certain major crimes in nearby jurisdictions.

The previous year, a federally funded study found that legalizing marijuana has little to no impact on rates of violent or property crime. The policy change did seem connected to a long-term decline in burglaries in one state, however.

A 2018 study from the think tank RAND said county-level data from California suggested that there was “no relationship between county laws that legally permit dispensaries and reported violent crime,” the researchers wrote. What’s more, there was a “negative and significant relationship between dispensary allowances and property crime rates,” though it’s possible that’s the product of “pre-existing trends.”

That same year, researchers at Victoria University of Wellington and Harvard University found that medical marijuana laws essentially have a null effect of crime rates, with one big exception: A nearly 20 percent reduction in violent and property crimes in California following the legalization of medical cannabis there.

DEA marijuana seizures have significantly declined as more states have moved to legalize cannabis, a new study led by a top marijuana investigator for the federal government found. And at the same time, marijuana arrests are also dropping across the country, and they dipped significantly in 2020, recent FBI data shows.

Federal marijuana trafficking cases also continued to decline in 2020 as more states have moved to legalize, an analysis from the U.S. Sentencing Commission (USSC) that was released in June found.

Federal prosecutions of drug-related crimes overall increased in 2019, but cases involving marijuana dropped by more than a quarter, according to a report released by Supreme Court Chief Justice John Roberts that year.

A study released by the Cato Institute in 2018 found that “state-level marijuana legalization has significantly undercut marijuana smuggling.

DEA Proposes Dramatic Increase In Marijuana And Psychedelic Production In 2022, Calling For 6,300 Percent More MDMA Alone

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Science & Health

Dogs Are Being Exposed To Marijuana Through Human Poop And Pet Owners Should Beware, Study Finds

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A word of caution to dog owners: apparently some canines are getting intoxicated off marijuana by eating the feces of people who’ve consumed cannabis, according to a new study.

Dogs are natural scavengers, and so the instinct to eat poop—while gross—is just a fact of life. But a team of Australian researchers found that, in some cases, that instinct can become dangerous, warranting the attention of puppy parents.

The study, published in the Australian Veterinary Journal, looked at 15 cases of confirmed THC toxicosis in dogs who were suspected of, or observed to have, ingested human feces in Melbourne from 2011-2020.

The dogs presented symptoms of incoordination, dilated pupils, urinary incontinence and stupor. Urine tests from eight of the dogs showed THC metabolites in their system.

However, study author Clara Lauinger told Marijuana Moment that this shouldn’t necessarily be taken to mean that any level of THC is toxic in dogs.

“The animals in my study had ingested an unknown quantity of feces that contained an unknown concentration of THC and so one would assume this concentration would be at a level that clearly caused toxicity,” she wrote in an email. “However this does not mean that all THC ingestions can lead to toxicity.”

In fact, there are other studies where animals were administered a controlled dosage of THC and “not a single one of them displayed any adverse effects that we might see with toxicity,” she said.

“There are so so many anecdotal reports of the huge benefits that THC administration has on animals, albeit reports are from owners perception rather than peer reviewed research, but this does not mean the industry should disparage THC as a therapeutic agent,” Lauinger said.

Most of the dogs in her new study apparently ate the poop at local parks, while others ingested it at the beach, camp sites and walking trails.

“All dogs survived to discharge. Ingestion of human feces containing THC may lead to marijuana toxicosis in dogs,” the study states. “Veterinary staff and owners should be attentive in regard to using appropriate hygiene measures when managing these dogs.”

The authors said that there are a number of reasons that a dog might eat poop—or, put scientifically, engage in coprophagy. But they floated one possibility for the marijuana-specific feces-eating trend: “It is possible that the presence of marijuana in feces increases its attractiveness for ingestion by altering its scent, texture and/or taste.”

Also, while this study is limited to data on about two dozen dogs in one city of Australia, the authors also said that the habit “might be more common than what owners report,” pointing to Google search results from people reporting a dog ate feces and exhibited signs of lethargy.

The idea of dogs getting high off THC-containing human waste might seem like a stretch on its own, but the study also explains that canines have more cannabinoid receptors than humans, “making dogs more sensitive to the effects of THC.”

“In conclusion, this case series suggests that ingestion of feces produced by a human marijuana user may lead to signs of marijuana toxicosis,” the researchers said. “Clinical signs of toxicosis were similar to those previously reported for dogs with conrmed marijuana toxicosis though gastrointestinal signs were not the most common feature despite coprophagy.”

“Veterinary staff and owners should be mindful of this exposure source to ensure appropriate hygiene measures are taken when managing these dogs,” the study says.

Lauinger said that there “needs to be an industrywide understanding of the fact that there are so many different strains of cannabis and each of these strains has different cannabinoid profiles that have possible potential for beneficial therapeutic effects.”

“These strains could be researched with a focus on what ones are suitable for animals and at what dose rather than blanketing all strains as being toxic,” she said. “I hope the public can be patient and also get behind us researching the dosing more.”

While there are clear concerns about dogs ingesting excess levels of THC, studies have found promising results when it comes to the therapeutic potential of other cannabinoids like CBD for pets.

For example, dogs with epilepsy experience considerably fewer seizures when treated with CBD oil, a study published in the journal Pet Behaviour Science in 2019 found.

The prior year, a separate study determined that CBD can alleviate the symptoms of osteoarthritis in dogs.

The Food and Drug Administration (FDA), for its part, has repeatedly warned pet owners about using CBD to treat firework-related anxiety in pets around the July 4 holiday.

“You should be aware that FDA has NOT evaluated these products and can’t say whether they are safe or effective, how they are manufactured, or whether they contain CBD,” the agency said this year.

Germany Will Legalize Marijuana And Promote Drug Harm Reduction, Governing Party Coalition Officially Announces

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Psychedelics Use Associated With 55 Percent Decrease In Daily Opioid Consumption, Study Finds

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The use of psychedelics like LSD, psilocybin, mescaline and DMT is associated with a significant decrease in illicit opioid consumption, according to a new study.

Researchers looked at data from “three harmonized prospective cohorts of community-recruited” people with substance misuse disorders. A total of 3,813 individuals were involved, including 1,093 who reported illicit opioid consumption and 229 who said they’d used psychedelics in the past six months.

“Recent psychedelic use was associated with 55% reduced odds of daily opioid use,” the Vancouver-based study, published last week in the Journal of International Drug Policy, found.

While there have been numerous studies connecting legal marijuana access to reduced opioid use and fewer overdose deaths, this is “the first longitudinal study to link psychedelic use with lower daily opioid use,” the paper says.

“Over study follow-up after adjusting for a range of potential confounders, psychedelic use remained independently associated with a significantly reduced odds of subsequent daily opioid use,” the study states. “While confirmation in other settings is required, these findings align with growing evidence that psychedelic use may be associated with detectable reductions in subsequent substance use including illicit opioid use.”

While there’s not a clear explanation for the trend—and the researchers urged additional studies—psychedelics like psilocybin and MDMA have been touted as potentially powerful tools in mental health treatment, effectively treating conditions like severe depression, post-traumatic stress disorder and addiction.

“These findings align with growing evidence demonstrating that psychedelic use may be associated with detectable reductions in subsequent opioid use, and warrant further research on psychedelics for opioid and other substance use disorders,” the study’s lead author, Elena Argento of the University of British Columbia, told Marijuana Moment.

“This study found naturalistic psychedelic use to be independently associated with a significantly reduced odds of subsequent daily illicit opioid use among a community-based sample of [people who use drugs],” the study concluded. “More research with controlled trials and longer-term follow-up is required to elucidate the therapeutic potential of psychedelics to augment existing interventions for substance use disorders, including among more diverse populations. Additional qualitative studies would also provide opportunities to improve understanding of the possible psycho-social mechanisms underpinning psychedelic experiences.”

Another recent study found that when people use cannabis together with psychedelics, it was “associated with higher scores of mystical-type experience, ego-dissolution and visual alterations.”

With respect to marijuana alone, a study published earlier this year found that cannabis use is associated with significant reductions in dependence on opioids and other prescription drugs, as well as an increase in quality of life

Another study released last year determined that states with active medical marijuana laws saw certain opioid prescription rates drop nearly 20 percent compared to prohibition states.

Using Marijuana With Psychedelics Intensifies The Mystical Experience, Study Finds

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Marijuana Legalization In Canada Did Not Result In Increased Traffic Injuries, Study Finds

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Canada’s move to legalize marijuana did not result in increased traffic injuries, a new study has found.

In a paper published in the journal Drug and Alcohol Dependence, researchers said they sought to investigate claims that establishing the cannabis legalization law, which took effect in October 2018, would make roads less safe, as prohibitionists frequently argue.

But after analyzing Ontario and Alberta emergency department data from April 2015 to December 2019, however, they couldn’t find any evidence to support that hypothesis.

“Implementation of the Cannabis Act was not associated with evidence of significant post-legalization changes in traffic-injury [emergency department] visits in Ontario or Alberta among all drivers or youth drivers, in particular,” the study states.

“Legalization not associated with changes in traffic injuries in all drivers or youth drivers.”

That’s despite the fact that “worldwide momentum toward legalization of recreational cannabis use has raised a common concern that such policies might increase cannabis-impaired driving and consequent traffic-related harms, especially among youth.”

The study’s lead author, Russ Callaghan, said in a press release that his team’s results “show no evidence that legalization was associated with significant changes in emergency department traffic-injury presentations.”

The researcher admitted that the outcome of the study is “somewhat surprising,” adding that he “predicted that legalization would increase cannabis use and cannabis-impaired driving in the population, and that this pattern would lead to increases in traffic-injury presentations to emergency departments.”

“It is possible that our results may be due to the deterrent effects of stricter federal legislation, such as Bill C-46, coming into force shortly after cannabis legalization,” he said, referring to a separate impaired driving bill. “These new traffic-safety laws imposed more severe penalties for impaired driving due to cannabis, alcohol, and combined cannabis and alcohol use.”

While Callaghan said he wasn’t expecting the results that his team ended up with, there is a body of existing research that’s also challenged the idea that legalization leads to increased traffic risks.

A U.S. congressional research body said in a 2019 report that concerns expressed by lawmakers that cannabis legalization will make the roads more dangerous might not be totally founded. In fact, the experts tasked by the House and Senate with looking into the issue found that evidence about cannabis’s ability to impair driving is currently inconclusive.

Other researchers have found on several occasions that traffic fatalities do not increase after a state legalizes marijuana.

A study published in the Journal of the American Medical Association late last year found that small doses of CBD appear to have no significant impact on driving, whereas comparable doses of THC were associated with short-term impairment “modest in magnitude and similar to that seen in drivers with a 0.05%” blood alcohol concentration.

In any case, House-approved report language related to funding for the Departments of Transportation, and Housing and Urban Development addresses drug-impaired driving from substances such as marijuana and urges the National Highway Traffic Safety Administration to take steps to address the issue.

DEA Boosts Psilocybin, MDMA And DMT Production Levels Again In Final Quotas For 2021

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