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

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.

Flawless crime techniques, a serial murder case with no assassin investigated!An unsettled case forces the police to cooperate with criminals, go deep into the crime scene and play a final match with the murderer to get justice for the dead. Both heroes join hands to fight strongly, but the undercurrent of this devil’s deal is surging and it’s about to trigger another wave of an even greater deadly crisis!

Cui Ye is an ordinary Go teacher whose life spirals into chaos after an accidental entanglement in a crime. As he gradually descends into illegality, his police officer brother, Cui Wei, relentlessly pursues him.

Detective Inspector Max Arnold lives on a battered houseboat at the end of Cheyne Walk after separating from his art dealer wife Astrid. The son of a local bookshop owner, Max is a far cry from the affluent elite whose crimes he'll help solve along with D.C. Priya Shamsie.

Crime drama set in the 1960s about an old-school detective trying to come to terms with a time when the lines between the police and criminals have become blurred.

DCI Ellis, a tenacious cop, is parachuted into failing investigations alongside her partner DS Harper. Each case will bring her to a different police station where she'll have to not only immerse herself in the case, but also win over the local police.

Genius detective Nero Wolfe and his right-hand man, Archie Goodwin, solve seemingly impossible crimes.

In the heart of London, an anonymous phone call draws two brilliant detectives—a young woman in the early stages of her career and a well-connected man determined to protect his legacy—into a fight to correct an old miscarriage of justice.

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.

Jake and the Fatman is a television crime drama starring William Conrad as prosecutor J. L. "Fatman" McCabe and Joe Penny as investigator Jake Styles. The series ran on CBS for five seasons from 1987 to 1992. Diagnosis: Murder was a spin-off of this series.

An elite squad of detectives investigate high-profile crime and corruption in metro Toronto.

Sherlock Holmes faces a sinister case risking friends' lives. American Amelia joins, seeking her father after her mother's murder. Despite differences, they solve a conspiracy and her mother's case.

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

The murder of a female GP in a rural playground in front of numerous witnesses draws a group of detectives into an ever-darkening mystery that takes them across Europe, aided by mysterious notes sent by the "Ghost Detective".

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

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.

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.

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.

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".