Discover 11,128,835 listings and 275,014 playable programmes from the BBC
14 minutes
First broadcast: on BBC Radio 4 FMLatest broadcast: on BBC Radio 4 LW
Available for over a year
An expert finds that the charred remains of a crime scene are evidence of arson. But the analysis does not survive the test of time when fire science changes. Show more
14 minutes
First broadcast: on BBC Radio 4 LWLatest broadcast: on BBC Radio 4 FM
Available for over a year
One of the FBI’s microscopic hair analysis experts gets it very wrong. And he's not alone. An FBI review tries to identify where it all went wrong. Show more
14 minutes
First broadcast: on BBC Radio 4 FMLatest broadcast: on BBC Radio 4 LW
Available for over a year
The police use coercive tactics to extract confessions from the Guildford Four. They're convicted, until years later when a psychological expert helps to free them. Show more
14 minutes
First broadcast: on BBC Radio 4 FMLatest broadcast: on BBC Radio 4 LW
Available for over a year
The police find a stranger’s DNA on a victim’s fingernails. The forensic report came back with a match from the police database - but can a DNA match be wrong? Show more
15 minutes
First broadcast: on BBC Radio 4 FMLatest broadcast: on BBC Radio 4 LW
Available for over a year
A judge must decide if baby Z’s death was caused by his parents, but expert witnesses submitting evidence in the case don’t agree with each other. Whose expertise should we accept? Show more
