There are several sub-genres of crime films including crime comedies, crime thrillers, film noir, heist films, hood films, legal dramas, mob films, and mystery films. Crime comedies take an amusing look at organized crime and its incompetent criminals. Crime thrillers involve crime playing a major role. Film noir features private detectives solving mysteries. Heist films center around groups planning and executing a theft. Hood films deal with urban African American issues and culture involving crime. Legal dramas focus on trials after a crime. Mob films spotlight characters involved with the Mafia. Mystery films follow detectives investigating crimes through clues and deduction.