Thanks for that but I think you are mistaken about the Federal District of DC being part of the DoJ. This District is Under Congress.
The United States Attorney for the District of Columbia is the United States Attorney responsible for representing the federal government in the United States District Court for the District of Columbia.
Unlike the states, District of Columbia is under the exclusive jurisdiction of the U.S. Congress. By statute, the U.S. Attorney is responsible for prosecuting both federal crimes and all serious crimes committed by adults in the District of Columbia. Therefore, the U.S. Attorney for the District of Columbia serves as both the federal prosecutor (as in the other 92 U.S. Attorneys' offices) and as the local district attorney. The Attorney General of the District of Columbia, who is elected by the people of the District, handles local civil litigation and minor infractions, comparable with a City Attorney.
The current U.S. Attorney for the District of Columbia is Jessie K. Liu, who was nominated by President Trump and confirmed by the Senate in September 2017. Liu replaced Acting U.S. Attorney Channing D. Phillips.