Herr und Frau Bulle

Two police officers, the older Lt. Stone and the young upstart Inspector Keller, investigate murders and other serious crimes in San Francisco. Stone would become a second father to Keller as he learned the rigors and procedures of detective work.

Wealthy couple Jonathan and Jennifer Hart, a self-made millionaire and his journalist wife, moonlight as amateur detectives.

McMillan & Wife is a lighthearted American police procedural that aired on NBC from September 17, 1971 to April 24, 1977. Starring Rock Hudson and Susan Saint James in the title roles, the series premiered in 90-minute episodes as part of the wheel series NBC Mystery Movie, in rotation with Columbo and McCloud. Initially airing on Wednesday night, the original line-up was shifted to Sundays in the second season, where it aired for the rest of its run. This was the first element to be created specially for the Mystery Movie strand.

Two detectives, DCI McDonald and DS Dodds, who seemingly have nothing in common, are thrown together and forge a rumbustious friendship and entertaining partnership.

A married professor is pulled into a passionate affair with a younger man that uncovers a path of tragedy and betrayal from those closest to her.

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.

A police department, lead by an older, experienced detective solve crimes together.

Perhaps their strikingly different personalities make the relationship between detective Jane Rizzoli and medical examiner Maura Isles so effective. Jane, the only female cop in Boston's homicide division, is tough, relentless and rarely lets her guard down, while the impeccably dressed Maura displays a sometimes icy temperament — she is, after all, more comfortable among the dead than the living. Together, the best friends have forged a quirky and supportive relationship; they drop the protective shield in each other's company, and combine their expertise to solve Boston's most complex cases.

Mary Beth Lacey and Chris Cagney are teamed up as NYPD police detectives. Their opposing personalities (one is tough and the other sensitive) mesh to make this one of the great crime-fighting duos of all time.

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

When a headmaster's wife goes missing, suspicion falls on him. Is he hiding something, or is there more to this case than meets the eye?

Travis Marks and Wes Mitchell are two partners who – apart from their polarity and odd couple behavior – have a seven-year track record as the Los Angeles Police Department's best detectives in the Robbery-Homicide Division. Since their constant bickering is interfering with work, their new-age captain – who found counseling changed his life – sends them to couples' therapy.