A 46-year-old man accused of drugging and raping youths committed a string of child sex offences while on bail, police say.
The far north Queensland man was last month charged with multiple offences including two counts of rape, 10 of supply dangerous drugs to a minor and five of procuring a young person.
Police said the Weipa man was granted bail after appearing in a magistrates court last month.
However, the man was charged with more offences after detectives searched his home last week, police said.
They include 10 counts of use carriage service to access child abuse material and five counts of supply dangerous drugs to a minor under 16.
He will appear at Cairns Magistrates Court on November 24.
Overall 11 men and two women have been charged with a total of 301 offences as part of Operation Uniform Kalahari.
More than 50 child victims have also come forward, police said.
Operation Uniform Kalahari was established last year to investigate the grooming and exploitation of vulnerable young people in the Cairns area.
It is alleged youths were groomed, indecently assaulted and supplied with drugs including methylamphetamine, police said.
"We continue to investigate all reports of offences against children," Detective Senior Sergeant Michael Gooiker said.
"These children have shown immense bravery, to speak up and report to police, which ultimately allows us to track down offenders and prosecute them."
