Government Printer, 1980.
A Royal Commission of Inquiry was established, headed by retired New South Wales Justice Robert Taylor. It declared Thomas to have been wrongfully charged and convicted and found that among other improprieties, police had planted a .22 rifle cartridge case in the garden of the house in which the murders were committed. The case was found four months and ten days after the area had already been subjected to one of the most intensive police searches ever undertaken. The cartridge case was said to have come from a rifle belonging to Thomas. However, the police tested only 64 rifles in an area where this weapon was common and found that two, including the one belonging to Thomas – could have fired the cartridge case found in the garden. That was the link to the deaths of the Crewes although it was later admitted that the case was "clean" and uncorroded when it was found. As such, the condition of the case was inconsistent with having lain in the garden, exposed to weather and dirt for more than four months.