Caught when the gloved hand of an accomplice was spotted closing the crate trapdoor at Rockhampton in Queensland, Kidd received four years for that audacious plan.
In his letter, Kidd said he had always thought of himself as Australian. He enlisted for national service at 18, he said, did his training and "was prepared to go and fight for country".
"No one has ever said to me, 'be careful, they may send you back to London'. I would have laughed at that, as I am an Aussie," he wrote.
Kidd was suspected of fatally shooting two Sydney gangland men, Roy Thurgar and Des Lewis, in the early 1990s. Former NSW assistant police commissioner Clive Small told the ABC the murder weapon - a sawn-off shotgun, found years later - belonged to Kidd. However, police could not prove he pulled the trigger.
According to Small, by the late 1990s Kidd was "associated with some of the biggest drug dealers in NSW". The former senior officer said he had no sympathy. "Bertie Kidd has for the whole of his life been a nasty, vicious, violent criminal. I don't think he's held an honest job for one day ... I'd hate to think that my money was now going to pay his pension."