| ATF | Bureau of Alcohol, Tobacco, Firearms and Explosives |
| BJA | Bureau of Justice Assistance |
| BJS | Bureau of Justice Statistics |
| BOP | Federal Bureau of Prisons |
| CODIS | Combined DNA Index System |
| COPS | Office of Community Oriented Policing Services |
| DEA | Drug Enforcement Administration |
| Department | U.S. Department of Justice |
| DHS | Department of Homeland Security |
| EOUSA | Executive Office for U.S. Attorneys |
| FBI | Federal Bureau of Investigation |
| FISA | Foreign Intelligence Surveillance Act |
| FISMA | The Federal Information Security Management Act |
| FY | Fiscal year |
| ICE | U.S. Immigration and Customs Enforcement |
| IG Act | Inspector General Act of 1978, as amended |
| IT | Information technology |
| ITIM | Information Technology Investment Management |
| NIJ | National Institute of Justice |
| OIG | Office of the Inspector General |
| OJP | Office of Justice Programs |
| OMB | Office of Management and Budget |
| OVC | Office for Victims of Crime |
| Patriot Act | USA PATRIOT Act |
| USAO | U.S. Attorney's Office |
| USMS | U.S. Marshals Service |
