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College of Arts and Sciences Marijuana

Study finds minimal effect on major crime from legal marijuana sales

Plastic bag containing marijuana.Legalizing recreational marijuana has had minimal effect on violent or property crime rates in Washington and Colorado, a WSU study funded by the National Institute of Justice has found.

“As the nationwide debate about legalization, the federal classification of cannabis under the Controlled Substances Act, and the consequences of legalization for crime continues, it is essential to center that discussion on studies that use contextualized and robust research designs » More …

FBI data show positive policing changes after cannabis legalization

David MakinWSU researchers have found that marijuana legalization in Colorado and Washington has not hurt police effectiveness. In fact, clearance rates for certain crimes have improved.

Clearance rates — the number of cases solved, typically by the arrest of a suspect — were falling for violent and property crimes in the two states before they authorized retail sales of marijuana late in 2012. The rates then improved significantly in Colorado and Washington while remaining » More …

Long-term cannabis use linked to muted stress response WSU study shows

A new study by Washington State University psychology researchers reveals a dampened physiological response to stress in chronic cannabis users.

Using a nationally recognized procedure designed to provoke elevated levels of stress, Carrie Cuttler, clinical assistant professor of psychology, Ryan McLaughlin, assistant professor of integrative physiology and neuroscience, and colleagues in the WSU Department of Psychology examined levels of the stress hormone cortisol in both chronic cannabis users and non-users. » More …