Contains some distressing scenes, moderate language and comments some viewers may find offensive.

In 1988, a fire swept through a house in Surrey. Two men died and Druhan was subsequently convicted of double murder. This programme shows how much of the evidence was unreliable and how one key incident could never in fact have happened.

Episode 1, Mary Druhan

Factual

True Crime

Trial and Error investigates real-life miscarriages of justice in the courts' system and aims to set them right.

Trial and Error

Series 1

Trial and Error investigates miscarriages of justice and aims to set them right.

In 1985, Mark Cleary was convicted with another youth of the abduction and murder of a ten-year-old boy. This programme uncovers new evidence casting doubt on many points of the conviction.

Episode 2, Mark Cleary

After the brutal and motiveless murder of two women in 1982, Peter Fell confessed to police. This programme unearths new evidence that Fell could not have been guilty of these murders.

Episode 3, Peter Fell

Brian Parsons was convicted of the brutal murder of an 84-year-old woman in Devon but this programme uncovers a catalogue of flaws in the police investigation of the crime.

Episode 4, Brian Parsons

In 1992, the body of insurance salesman Paul Newman was discovered near Leighton Buzzard. 17-year-old Jason Warr was convicted. This programme discovers astonishing new evidence that destroys the case again Warr.

Episode 5, Jason Warr

It was said that in 1992 Sheila Bowler had drowned her aunt and hid her involvement with an intricate cover story. This programme casts doubt on each and every part of the prosecution's case.

Episode 6, Sheila Bowler Part 1

The second part of the investigation into Sheila Bowler as doubt continues to be cast on the prosecution's case.

Episode 7, Sheila Bowler Part 2

The concluding part of the Shelia Bowler story catches up with Shelia herself as her case progresses.

Episode 8, Sheila Bowler, Part 3

In 1981, the body of a 16-year-old schoolgirl was found on the outskirts of Glasgow. Unemployed Raymond Gilmour was the prime suspect. This programme discovers that the case against Gilmour was almost entirely circumstantial.

Episode 9, Raymond Gilmour

In 1984, during the period known as 'The Ice Cream Wars', the Doyle family were murdered in their home in Glasgow. TC Campbell & Joe Steele were convicted of their murders but this programme casts doubt on the prosecution's case.

Episode 10, Campbell and Steele

Paula Gilfoyle was eight-and-a-half months pregnant when she was founding hanging in her home in 1992. Paul's husband, Eddie, was found guilty of her murder but this programme uncovers new evidence which undermines the prosecution's case.

Episode 11, Eddie Gilfoyle

George McPhee was alleged to have murdered Elizabeth Sutherland in 1984 in the Scottish Highlands. But how could McPhee have committed the murder when - as this programme discovers - he was many miles away near Newcastle?

Episode 12, George McPhee

Chowdhary was accused of the brutal and senseless killing of 17-year-old Raymond Kelly in 1991. But using state of the art virtual-reality technology this programme proves beyond doubt that Chowdhary simply could not have been the murderer.

Episode 13, Jamil Chowdhary

Danny McNamee was to stand trail as the man responsible for the notorious Hyde Park bombing in 1982 which killed four soldiers. But a reinvestigation by this programme uncovers valuable new evidence.