Three police officers were killed whilst patrolling an area of west London in August 1966. Dubbed The Shepherd's Bush Murders, they shocked the nation.
Wanted murderer, Dale Cregan, ambushed and killed two female PCs on a routine callout in Manchester. Rav Wilding investigates.
The stopping of a suspected stolen car leads to the murder of PC Ian Broadhurst by fugitive David Bieber, on the run from Florida law enforcement.