Review of the Department of Justice's Planning and Implementation of Its Zero Tolerance Policy and Its Coordination with the Departments of Homeland Security and Health and Human Services [open pdf - 2MB]
From the Executive Summary Introduction: "On April 6, 2018, then Attorney General Jeff Sessions announced that the U.S. Department of Justice (DOJ, Department) had adopted a 'zero tolerance policy' for immigration offenses involving illegal entry and attempted illegal entry into the United States. The policy required each U.S. Attorney's Office (USAO) on the Southwest border to prosecute all referrals for illegal entry violations, including misdemeanors, referred by the U.S. Department of Homeland Security (DHS) 'to the extent practicable, and in consultation with DHS.' [...] In July 2018, multiple members of Congress requested that the DOJ Office of the Inspector General (OIG) review the Department's role in the creation and implementation of the zero tolerance policy. The OIG conducted this review to assess the Department's planning for and implementation of the zero tolerance policy, including its internal coordination with the Southwest border USAOs, the U.S. Marshals Service (USMS), and with DHS and the U.S. Department of Health and Human Services (HHS). Consistent with the Inspector General Act of 1978, this review does not substitute the OIG's judgment for the judgments made by DOJ leadership regarding the substantive merits of the zero tolerance policy."
Department of Justice Office of Inspector General, Report No. 21-028
U.S. Department of Justice Office of the Inspector General: https://oig.justice.gov/