The problem with making TV dramas about unsolved real-life murder mysteries is that they’re still unsolved, unless the film-makers decide to invent a fictional denouement. This might well trigger an avalanche of legal and ethical objections.

The impact of great art is physical as much as it is psychological. I recall the first time I saw Perry Henzell’s 1972 film, The Harder They Come. I’d been in the pub and, as we did then with just four channels, slumped in front of the television to see what was on late on a Friday night.

You’ll have absorbed key strands of The Sweeney‘s DNA even if you’ve never watched an episode, ITV’s groundbreaking police drama having had an impact and influence far bigger than its creators could ever have imagined. Writer Ian Kennedy Martin had met the young John Thaw in the 1960s and was keen to work with him again, penning a 90-minute script about a maverick detective inspector for Thames Television’s Armchair Cinema slot in 1974.

Ordinary Decent Criminal, Summerhall ★★★★★ 

Having played Sherlock Holmes’s politically involved older brother Mycroft in the BBC’s hit crime series Sherlock, Mark Gatiss may not be an obvious candidate to now follow in the footsteps of the famous detective. But with his new murder mystery series Bookish, set in London in the aftermath of World War Two, the creator, writer and star of the six-part show has finally become a sleuth himself.

Following the success of its screen version of Michael Connelly’s veteran detective Harry Bosch, starring Titus Welliver, Prime Video aims to make lightning strike twice by televising Connelly’s series of Renée Ballard books. Like Bosch, Ballard works for the LAPD, but has been demoted from the Robbery-Homicide division after reporting a sexual assault by her supervisor, Robert Olivas.

The first series of The Gold in 2023 was received rapturously, though apparently it only told one half of the story of the 1983 Brink’s-Mat robbery at Heathrow airport. Now screenwriter Neil Forsyth has returned to the scene of the crime to reveal what happened – or might have happened, since there’s a fair bit of artistic licence at play here – to the missing portion of the £26 million quid’s worth of stolen gold.

Netflix’s new detective-noir is a somewhat cosmopolitan beast. It’s written and directed by an American, Scott Frank, derived from a novel, Mercy, by the Danish crime writer Jussi Adler-Olsen, and set in Edinburgh (as well as other flavourful Scottish locations). There are plenty of Scots in the cast too, although it’s the very English Matthew Goode (Downton Abbey, The Crown etc) who takes the lead role of DCI Carl Morck.

They stopped making the BBC’s original Bergerac in 1991, so you can hardly complain that this reboot is premature. John Nettles became closely identified with the titular detective Jim Bergerac before he decamped to Midsomer, murder capital of the world, and has declared himself impressed with Damien Molony’s performance as the born-again sleuth (pictured below, Molony picks up the baton from Nettles).

In a dingy room with dilapidated furniture on a dismal Sunday evening, two detectives prepare for an interview. The old hand walks out, with just a little too much flattery hanging in the air, leaving the interrogation in the hands of the up-and-coming thruster, a young woman investigating the disappearance of a young woman. Alone, with just a camera for company (we get the video feed also from hidden cameras too) she awaits the suspect for the showdown.