Review of U.S. Customs and Border Protection's Fiscal Year 2021 Drug Control Budget Formulation Compliance Report [open pdf - 1MB]
From the Document: "The Office of National Drug Control Policy (ONDCP) Circular, 'National Drug Control Program Agency Compliance Reviews,' requires National Drug Control Program agencies to submit to the ONDCP Director by February 1 of each year a detailed accounting of all funds expended for National Drug Control Program activities during the previous fiscal year. At least every 3 years, the Office of Inspector General is required to review the report and provide a conclusion about the reliability of each assertion made in the report."
Department of Homeland Security, Office of Inspector General, Report No. OIG-22-19
Department of Homeland Security Office of Inspector General: https://www.oig.dhs.gov/