The United States Attorney's Office for the District of Columbia, Conviction Integrity Unit (CIU) is a unit that investigates fact-based wrongful conviction claims presented by defendants who were convicted of violent offenses in the District of Columbia Superior Court or the United States District Court for the District of Columbia. A defendant or attorney seeking to have a conviction reviewed should contact the CIU and provide the defendant's name, case number, year of conviction, and a description of the factual basis for the claim of actual innocence. In addition, if DNA testing is requested, the request should contain a description of the material to be tested and an explanation of how DNA test results will support the actual innocence claim. To submit a claim, please use their email address or mail claims to their address. For more information, please contact them directly. Please click here to learn more about what a Conviction Integrity Unit is.