The actor looks at a number of British crimes and the techniques used to crack them. The first programme highlights the use of groundbreaking fingerprint evidence used both to identify a mutilated body and catch the killer.
The actor looks at the 100-year debate over the remains found in Dr Crippen's cellar and learns how a famous imposter was unmasked in court.
A reappraisal of evidence in the case against East End resident Israel Lipski, who was hanged for murder at Newgate Prison in 1887, asking whether he was guilty of the crime for which he was executed.
The presenter examines three previously unsolvable murder cases that were eventually cleared up by pioneers of ballistic science.