A 42-year-old university law lecturer who allegedly impersonates Justin Bieber on the internet is facing almost 1000 child sex charges after using the singer as a way to encourage children to send him explicit images.
QUT's Gordon Douglas Chalmers has been charged with 931 offences.
Mr Chalmers appeared in the Brisbane Magistrates Court last year charged with using a carriage service to groom and procure children under 16.
On Thursday he was also charged with rape, indecent treatment of children and making child exploitation material.
The Courier-Mail reports he first came to the attention of police after he was tracked by Germany's federal police and the US Homeland Security officers.
Police are now warning parents of young Justin Bieber fans to be extra vigilant about monitoring their use of the internet.
Police allege a man allegedly used Facebook and Skype to contact his victims over a decade, with police suggesting there was evidence to show the communications dated back to at least 2007.
Detective Inspector Jon Rouse said Task Force Argos -- which targets online child abuse -- would continue to target those using the internet to harm children.
"This investigation demonstrates both the vulnerability of children that are utilising social media and communication applications and the global reach and skill that child sex offenders have to groom and seduce victims," Det Insp Rouse said.
"The fact that so many children could believe that they were communicating with this particular celebrity highlights the need for a serious rethink about the way that we as a society educate our children about online safety.
"The breadth of offences committed in this instance are frankly horrendous and I want to recognise the efforts and commitment of the investigative team at Taskforce Argos to keeping children safe."
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