Police officers made about 663,000 arrests for marijuana-related offenses in the 50 states and the District of Columbia in 2018, amounting to 40% of the 1.65 million total drug arrests in the U.S. that year (the most recent for which data is available). https://t.co/jE0NXGcffW pic.twitter.com/tndiHJgOQf
— Pew Research Center (@pewresearch) January 22, 2020