Each state and territory in Australia has its own legislated computer-related offences which are similar to the Commonwealth legislation. If you know the identity of the perpetrator and they reside in Australia, and you consider the matter serious enough, then you can report it to the state or territory police where you live. It is not necessary to directly contact the AFP, your local police should be your first point of contact. The AFP works closely with state and territory police and international policing agencies.
To access the form for reporting concerns to the Australian Centre to Counter Child Exploitation about inappropriate behaviour towards children that you find online, use the link and form on the AFP website.
ThinkUKnow is an online safety program delivering interactive training to parents, carers and teachers through primary and secondary schools across Australia using a network of accredited trainers. Trained AFP and Microsoft volunteers deliver the presentations.