Prime Suspect is a British police procedural television drama series devised by Lynda La Plante. It stars Helen Mirren as Jane Tennison, one of the first female Detective Chief Inspectors in Greater London's Metropolitan Police Service, who rises to the rank of Detective Superintendent while confronting institutionalised sexism within the police force.

Prime Suspect focuses on a no-nonsense female Detective Chief Inspector (DCI), Jane Tennison (played by Helen Mirren), who is an officer in the Metropolitan Police, initially at the fictional Southampton Row police station.

The series follows her constant battles to prove herself within a male-dominated profession in which many of her colleagues are determined to see her fail, though she has the support of her boss, Detective Chief Superintendent Mike Kernan (John Benfield), and the loyalty of Detective Sergeant Richard Haskons (Richard Hawley).

In later series, Tennison is reassigned to rotating duties, including a vice squad in Soho and a gang squad in Manchester. She is promoted to Detective Superintendent in series 4 and retires from policing at the end of series 7.