An urgent warning has been issued as a new global trend emerges of young boys being groomed into taking explicit images and then being extorted for money.
Police chiefs fear children getting their first tablets and mobile phones at the start of the new school year will be targeted by perverts trying to groom them and have revealed the code they use.
The Australian Federal Police have warned of an increase in reports of child sex offenders offering children food vouchers and cash for self-producing child exploitation material.