A study by the Australian Institute of Criminology of 162 attempted or actual contract murders in Australia between 1989 and 2002 indicated that the most common reason for murder-for-hire was insurance policies payouts.
En undersøgelse af motiverne i 163 sager om mord og mordforsøg i Australien fra 1989 til 2002, viste at det mest udbredte motiv for lejemord var at afslutte kærlighedsforhold.