On January 31, 2023, the government of British Columbia implemented a temporary, three-year drug decriminalization policy. Under the policy, adults (18 and older) could possess up to a combined 2.5 grams of specified illegal drugs—including opioids, cocaine, methamphetamine, and MDMA—for personal use without criminal charges, prosecution, or confiscation. The policy was intended to reduce the health and social harms of illicit substance use. A new study in CMAJ evaluated changes in drug-relat...