Best British 'whodunnit' shows

Sherlock Holmes and Dr Watson solve the mysteries of copper beeches, a Greek interpreter, the Norwood builder, a resident patient, the red-headed league, and one final problem.

A team of dedicated detectives investigate gruesome murders across London.

Created by Jimmy McGovern, each episode of this series examines a person who is accused of a crime and what led them to end up in the Dock.

Hercule Poirot, a famous Belgian detective, who has an impeccable knack for getting embroiled in a mystery, solves crimes along with Captain Hastings and Scotland Yard Chief Inspector James Japp.

The story of Sir Alec Jeffreys' discovery of DNA fingerprinting and its first use by DCS David Baker in catching a double murderer.

A three part TV miniseries about Lanarkshire's Detective William Muncie and his quest to bring to justice notorious killer Peter Manuel.

In Victorian-era London, Scotland Yard Police Inspector Frederick Abberline battles his drinking problem while he investigates the Jack the Ripper murders and discovers a conspiracy that leads all the way up to the Queen.

Detective Chief Inspector Colin Sutton tracks down a serial killer.

DSU Steve Wilkins reopens two unsolved murder cases from the 1980s. Forensic methods link the crimes to a string of burglaries. Steve's team has to find more evidence before the perpetrator is released from prison.

Two part ITV drama based on the long police investigation and hunt for serial killer the Yorkshire Ripper, in late 1970s Northern England. It shows the effect that it had on the health and career of ACC George Oldfield who led the enquiry.

Revolves around the true story of a fateful night in August 1985 when five members of the same family are murdered at an Essex farmhouse, and the ensuing police investigation and court case that follows.

The murder of a young boy in a small coastal town brings a media frenzy, which threatens to tear the community apart.

Dr Edward "Fitz" Fitzgerald is a criminal psychologist. He is rather anti-social and obnoxious but he has a gift for solving crimes. Thus he is employed as a consultant by the Manchester Police.

A Detective Inspector is transferred from London to the island of Saint Marie in the Caribbean.

Jonathan Creek, a magician with a natural ability for solving puzzles, works from his home in a converted windmill. He uses his abilities to solve impossible crimes and mysterious murders.

UK version of the long-running U.S. TV drama that tells the stories of both the police, who investigate crime; and the crown prosecutors, who prosecute the offenders.

Three retired police officers are drafted in to solve cold cases, with a touch of comedy and drama

The quirky spin on Conan Doyle's iconic sleuth pitches him as a "high-functioning sociopath" in modern-day London. Assisting him in his investigations: Afghanistan War vet John Watson, who's introduced to Holmes by a mutual acquaintance.

DI Jack Frost is an unconventional policeman with sympathy for the underdog and an instinct for moral justice. Sloppy, disorganized, and disrespectful, he attracts trouble like a magnet.

Drama series following a team of detectives who investigate unsolved murders using modern technology.

A British police procedural, which follows the team from a forensic pathology facility that conducts scientific research to help solve crimes.

A fast-tracked inspector, a hardened detective sergeant, and an expert in historical homicides investigate modern crimes with connections to the past in the Whitechapel district of London.

Dr Tony Hill, a clinical psychologist, helps Detective Inspectors Jordan and Fielding get to the bottom of inexplicable criminal cases and uses his 'dark side' to fathom serial killers and their victims.

A seemingly cold but very passionate policewoman goes head to head with a father, who is in fact a serial killer, in this procedural out of Belfast. The only thing they share is their common complexity.

John Luther is a brilliant homicide detective with a knack for getting inside the minds of murderers. Unfortunately, his unconventional methods and personal demons put him at odds with his team.