Tougher measures for child sex offenders

Child sex offenders who secretly change their name face five years in jail under tough new child protection measures before the NSW parliament.

The child protection register will also be widened to capture any adult convicted of intentionally wounding or causing grievous bodily harm to a child under 10, Police Minister Stuart Ayres said.

Convicted sex offenders will still be able to apply for a name change under the proposal.

"This may be rejected when the name change is likely to be regarded as offensive by the registrable person's victim, or where it may undermine the ability of police to monitor the offender," he said.

Mr Ayres introduced the bill on Wednesday.

Penalties for child offenders who secretly change their name will be significantly increased from $550 to $55,000, or five years prison, or both.

Offenders listed on the register are compelled to report their employment, email addresses, computer log-ins, car licence numbers, whereabouts and travel plans.

The new law expands this to cover car hire and mobile phone numbers.

Regular contact with children must also be reported, including visiting a house where a child is present, exchanging contact details, or trying to befriend a child.

It also covers email and internet exchanges.

Comment is being sought from child protection advocates.