New documentary for ³ÉÈËÂÛ̳ Radio 4
Radio 4,·5 episodes
The police find a stranger’s DNA on a victim’s fingernails. Can a DNA match be wrong?
An expert thinks a crime scene indicates arson. But then the fire science changes.
The police use coercive tactics to extract confessions from the Guildford Four.
One of the FBI’s microscopic hair analysis experts gets it very wrong. And he's not alone.
A judge has to decide the cause of a baby’s death but the experts in the case don’t agree.
