Department of Homeland Security 'Office of Inspector General' Budget Overview (Fiscal Year 2019 Congressional Justification) [open pdf - 273KB]
From the Document: "The Department of Homeland Security (DHS) Office of Inspector General (OIG) conducts and supervises independent audits, inspections, and investigations and recommends ways for DHS to carry out its vital responsibilities in the most effective, efficient, and economical manner possible. The OIG seeks to deter, identify, and address fraud, abuse, mismanagement, and waste of taxpayer funds invested in homeland security. The OIG is an independent entity to which employees, contractors, and the public can report fraud, waste, and abuse that affects the Department. Results of its findings are reported to the DHS Secretary, Congress, and the public, when appropriate. The OIG seeks to ensure improved transparency, accountability, and efficiency across the Department."
U.S. Department of Homeland Security: https://www.dhs.gov/