On June 19, 2017, The Pew Charitable Trusts submitted a letter to the President’s Commission on Combating Drug Addiction and the Opioid Crisis, outlining an analysis of whether state drug imprisonment rates are linked to the nature and extent of state drug problems - a key question as the nation faces an escalating opioid epidemic. Pew compared publicly available data from law enforcement, corrections, and health agencies from all 50 states.