1963: The Trap That Caught Serial Killer Eric Edgar Cooke
In August 1963, Perth police discovered a rifle hidden in bushes, linked to the murder of Shirley McLeod. Rather than remove it, they set a trap: replacing the weapon with an inoperable replica tied with fishing line, then waited.
On 1 September 1963, Eric Edgar Cooke returned to retrieve the rifle and was arrested on the spot. Under questioning, he confessed to 22 violent crimes, including eight murders, making him one of the deadliest serial killers in Australian history.