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A detective team apply new techniques to old crimes as they solve cold cases.

Crime drama series following the investigations of DCI Red Metcalfe.

Alex Cross is a brilliant but flawed homicide detective and full of contradictions. A doting father and family man, Cross is single-minded to the point of obsession when he hunts killers. He is desperate for love, but his wife’s murder has left him too damaged to receive it.

The son of a notorious serial killer becomes an acclaimed criminal psychologist who uses his unique insight into how killers think to help the NYPD.

Stu Bailey and Jeff Spencer are the wisecracking, womanizing private-detective heroes of this Warner Brothers drama. They work out of an office located at 77 Sunset Strip in Los Angeles, California, right next door to a snazzy restaurant where Kookie works as a valet. The finger-snapping, slang-talking Kookie occasionally helps Stu and Jeff with their cases, and eventually becomes a full-fledged member of the detective agency. Rex Randolph and J.R. Hale also join the firm, and Suzanne is their leggy secretary.

Rachel Burke is a criminal profiler, one of the best, actually. She, along with a sophisticated team of specialists on the FBI's Violent Crimes Task Force in Atlanta, investigates crimes throughout the country. Together, they solve the toughest of cases while trying to live their lives as best they can.

An American anthology police detective series utilizing multiple timelines in which investigations seem to unearth personal and professional secrets of those involved, both within or outside the law.

A demented serial killer taunts a retired police detective with a series of lurid letters and emails, forcing the ex-cop to undertake a private, and potentially felonious, crusade to bring the killer to justice before he can strike again.

Barnaby Jones is a television detective series starring Buddy Ebsen and Lee Meriwether as father- and daughter-in-law who run a private detective firm in Los Angeles. The show ran on CBS from January 28, 1973 to April 3, 1980, beginning as a midseason replacement. William Conrad guest starred as Frank Cannon of Cannon on the first episode of Barnaby Jones, "Requiem for a Son" and the two series had a two-part crossover episode in 1975, "The Deadly Conspiracy".

Cranky but likable L.A. PI Jim Rockford pulls no punches (but takes plenty of them). An ex-con sent to the slammer for a crime he didn't commit, Rockford takes on cases others don't want, aided by his tough old man, his lawyer girlfriend and some shady associates from his past.

A dark psychological crime drama starring Idris Elba as Luther, a man struggling with his own terrible demons, who might be as dangerous as the depraved murderers he hunts.

DS Barbara Havers is assigned to work with the upper-crust DI Thomas Lynley to solve murders.

When a spate of grisly murders throws a city into chaos, a tenacious prosecutor must brace for a cat-and-mouse game against a dangerous manipulator.

21 Jump Street revolves around a group of young cops who would use their youthful appearance to go undercover and solve crimes involving teenagers and young adults.

Police Detective Sgt. Joe Friday and his partners investigate crimes in Los Angeles.

A retired FBI serial-profiler joins the mysterious Millennium Group, a team of underground ex-law enforcement experts dedicated to fighting against the ever-growing forces of evil and darkness in the world.

Baretta is an American detective television series which ran on ABC from 1975 to 1978. The show was a milder version of a successful 1973–74 ABC series, Toma, starring Tony Musante as chameleon-like, real-life New Jersey police officer David Toma. While popular, Toma received intense criticism at the time for its realistic and frequent depiction of police and criminal violence. When Musante left the series after a single season, the concept was retooled as Baretta, with Robert Blake in the title role.

When an assassin's bullet confines him to a wheelchair for life ending his career as Chief of Detectives, Robert T. Ironside becomes a consultant to the police department. Detective Sergeant Ed Brown and policewoman Eve Whitfield join with him to crack varied and fascinating cases. Ex-con Mark Sanger is employed by the chief as home help but eventually becomes a fully fledged member of the team also. Officer Whitfield leaves after 4 years service, and is replaced by Officer Fran Belding.

After Portland homicide detective Nick Burkhardt discovers he's descended from an elite line of criminal profilers known as "Grimms," he increasingly finds his responsibilities as a detective at odds with his new responsibilities as a Grimm.

Facing a trail of murders staged as chilling word games, a rookie police captain and a goofy detective race to solve a serial killer's deadly puzzles.