Doubles - Futari no Keiji

Houston Knights is an American crime drama set in Houston, Texas. The show ran on CBS from 1987 to 1988 and had 31 episodes. The core of the show was the partnership between two very different cops from two different cultures. Chicago cop Joey LaFiamma, played by Michael Paré, is transferred to Houston after he kills a mobster from a powerful Mafia family and a contract is put out on him. Once there, he is partnered with Levon Lundy, played by Michael Beck, the grandson of a Texas Ranger. Although as different as night and day, and after a rocky beginning they form a successful partnership and become friends. This is aided to a certain extent by an event where a hitman from Chicago who holds the contract to shoot La Fiamma arrives in Houston and is ultimately killed by Lundy. During the series, it is revealed that both La Fiamma and Lundy have their own personal demons; La Fiamma's Chicago police partner had been killed when he went ahead while La Fiamma had waited for backup to arrive. Lundy's wife had been killed by an explosion that was intended to kill him.

Constable Benton Fraser, an officer of the Royal Canadian Mounted Police, is attached to the Canadian consulate but works with Chicago Police Department to solve crimes.

Fastlane is an American action/crime drama series that was broadcast on Fox from September 18, 2002 to April 25, 2003.

New York, USA. Stockholm, Sweden. Over the past twelve months young, blonde, blue-eyed women have been found dead in a meadow where Asphodel flowers grow. New York Detective Tommy Conley gets a special dispensation from the NYPD to go observe and act as an adviser to the Stockholm Police Department in order to help solve these crimes.

The series follows Detective Carter, a radical LAPD detective, and Detective Lee, a by-the-book detective from Hong Kong, as they are forced into forming an unlikely partnership

In the fictional Yorkshire town of Wetherton, the unlikely duo of politically incorrect elephant-in-a-China-shop-copper DS Andrew Dalziel (pronounced Dee-ell) and his more sensitive and university educated sidekick DS, later DI, Peter Pascoe is always on hand to solve the classic murder mystery, while maintaining down-to-Earth wit and humour.

A slightly unhinged former Navy SEAL lands a job as a police officer in Los Angeles where he's partnered with a veteran detective trying to keep maintain a low stress level in his life.

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.

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.

Comedy drama following a mismatched pair of police officers who disagree on everything with their partner, from policing to their personal life.

Killer Instinct is an American crime drama television series filmed in Vancouver that originally aired on the Fox Network. The pilot episode aired on September 23, 2005, and the final episode aired on December 2, 2005. Fox ordered 13 episodes, only nine of which were broadcast in the United States; the remaining four premiered in the UK on Five. The series also been broadcast in France, New Zealand, Croatia, Italy, Netherlands, Australia, Japan, and Poland.

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.