It was supposed to be a routine hospital check-up - Charlie was in remission and running around like any five-year-old.
Instead, his parents, Tony and Sam Ryan, were given the devastating news that his cancer had returned and was in his bones.
Police Commissioner Karl O'Callaghan and Mr Ryan's other police colleagues hope to raise $30,000 to send Charlie and his family to Britain to visit relatives and to Disneyland Paris before he is too sick to travel.
Mr O'Callaghan said Charlie, who was diagnosed with the rare cancer neuroblastoma on New Year's Eve in 2010, and another police officer's daughter were the inspiration for his charity for sick children, Bright Blue.
Donations for Charlie can be made through Bright Blue at brightblue.org.au.Any extra money will go towards other Bright Blue projects.
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