A twenty year veteran of the NYPD, Derrick Parker headed the first special units force dedicated to the investigation of hip-hop related crime. Now off the force, Parker serves as media's rap-related crime expert, appearing in Rolling Stone, New York Magazine, Blender, Vibe, The New York Times, Newsday and dozens of other magazines and newspapers as well as shows on MTV, Fox, VH1, Unsolved Mysteries and Court TV.