Who investigates and prosecutes federal crimes?

Video Transcription:

In instances where the United States of America is alleging criminal conduct and the Assistant United States Attorney is assigned to prosecute the case, the cases are developed by federal agents. Federal agencies include the D.E.A., the A.T.F., and Homeland Security. In instances where the federal government is prosecuting, it is imperative to hire an experienced federal defense attorney to fight the charges.