Glasgow’s finest are on the case in these thrilling radio adaptations, based on the books by Peter Turnbull. In the four-part serial Condition Purple, a murdered prostitute is found in the heart of Glasgow's prosperous business quarter. Could a tattoo on her body hold the key to finding her killer? In Two Way Cut, another four-parter, a headless body without a speck of blood on it has the cops puzzled - and who was the strange figure that PC Hamilton saw running along by the canal?

Inspector Purbright is a thoroughly English policeman: affable, polite, dogged and decent. Created by award-winning crime writer Colin Watson, he appeared in 12 Flaxborough mysteries, four of which were adapted for BBC TV under the title Murder Most English. These five radio dramatisations star Peter Jeffrey, John Pullen and John Rowe as Purbright.

Cantankerous and dishevelled, Chief Inspector Dover is no one's idea of a model detective - but he does have an uncanny knack for solving crimes. In these radio dramas, set in the 1960s and '70s, he and his long-suffering sergeant, Charlie McGregor, investigate sinister cases of kidnap and murder. The first four are adapted from Joyce Porter's novels, while the latter two are original stories based on her characters.

Ex-policeman Galbraith is caught up in mystery and murder in these two gripping, fast-paced detective dramas. After a long career in the Flying Squad, veteran copper Bill Galbraith is hanging up his truncheon and saying goodbye to the police force. He's looking forward to a quiet life on civvy street - but his best friend, private investigator Tommy Evans, has other ideas.

Terminus finds her investigating the 'Lucky Charm' murders, as she searches for an elusive serial killer who haunts the railway station. In The Smithfield Murders, a grisly killing at London's famous meat market sparks another troubling investigation, while in The Net and the Canal, Enfield and her team look into a series of mysterious murders along Regent's Park Canal. Leaves of the Dead presents her with a trio of inexplicable deaths in the British Library - could they be ritual murders?

In these two compelling murder mysteries, MI6 officers Henry Colvil and Alex Soames become involved in a pair of complex cases which take them to the very top of the political and religious spheres. Written by acclaimed historian, broadcaster and author Christopher Lee, these gripping spy thrillers star Christopher Benjamin (Pride and Prejudice, Doctor Who) as Henry Colvil and Amanda Redman (The Good Karma Hospital, New Tricks) as Alex Soames. 

DI Trueman and DS Riley are reluctant partners in crime-fighting, paired up after high-flyer Trueman suffered a nervous breakdown that left him struggling to get back on his feet. Working with Riley isn’t exactly what the doctor ordered - but the Sergeant turns out to be much more of a help than a hindrance when it comes to cracking cases.

A BBC Radio 4 crime drama about a Merseyside mum-turned-private eye. Single mum Rosie Monaghan is 39 and redundant. Wondering what to do with the rest of her life – and with two kids to support – she decides to start a new career as a private detective. In series 1 she begins her first investigation, involving a mystery client and a seemingly innocent death that no one else thinks is murder. But being a private eye proves trickier than she thought.

Seventeen stories from the gritty crime series created by Danny Brocklehurst, starring Hugo Speer as Manchester detective John Stone. This collection brings together Series 1 to 4 of this intelligent detective drama, tackling morally ambiguous, complex and challenging subjects. DCI Stone and his team investigate a series of brutal murders and missing person cases, among other grisly crimes. Starring Hugo Speer as DCI John Stone, Craig Cheetham as DI Mike Tanner and Deborah McAndrew as DS Sue Kelly.

1920s Stirling, and Chief Pathologist Dr Wallace is the town's acknowledged expert on all matters forensic. But he's not the only detective in the family - his daughter Barbara, a medical student, also has quite a talent for investigating. In these six one-off dramas, the two amateur sleuths join forces to tackle a string of tricky cases, each involving a suspicious death.

West Midlands copper Jackie Hartwell has one of the toughest jobs in CID: comforting and supporting grieving relatives in the aftermath of a serious crime. But there's much more to what she does than providing tea and sympathy. Part social worker, part savvy investigator, she needs to be able to win the trust of families, while simultaneously keeping a watchful eye on their behaviour and reactions. Because often, the suspect she's searching for isn't far from home....

Detective Inspector Gwen Danbury comes from a family of investigators. Her father was a policeman, and her mother Joan often discussed cases with him - on one occasion helping him to solve a tricky murder. Gwen already has a capable, efficient sidekick in the form of DS Henry Jacobs - but nevertheless, her mum insists on helping Gwen with her inquiries.

Returning to his home town of Middlesborough on a six-month attachment to the Teesside police, criminal psychologist Joe Aston is called in for seven unusual and baffling cases. As a specialist in the controversial field of 'recovered memory', his skills are crucial: only he can uncover the truth by persuading victims, witnesses and suspects to remember what they'd rather forget.

Each Roman Catholic parish compiles a Book of the Dead from the lists of departed loved ones submitted by parishioners. Printed on the front of the envelopes are three words: November Dead List. In this series, a young priest opens one such envelope and discovers not a list of the dead but a list of people he knows to be alive and members of his congregation. At first he thinks it's someone's idea of a joke. Then the people named start turning up dead.

Manchester detective DCI Stone and his team are faced with 10 complex, morally challenging cases in this collection of hard-hitting radio dramas. As series 5 opens, Stone is still reeling from the mishandled shooting of Callum Gartside, a gunman who had murdered his own family. With his personal life in tatters, he must find the strength to hold it together and do his job.