Deputy NSW police commissioner set to front bugging inquiry

Deputy Police Commissioner Nick Kaldas will front a parliamentary inquiry into a long-running NSW police bugging scandal today.

Mr Kaldas was one of more than 100 police alledgedly spied on more than a decade ago as part of a covert internal corruption investigation.

The inquiry is examining a NSW ombudsman investigation into the bugging claims and their subsequent handling by police.

In a submission to the inquiry, Mr Kaldas alleged false information was used in swearing affidavits for warrants to bug himself and colleagues.

Mr Kaldas, who is tipped to be in the running for the state's top policing job, said the intense level of surveillance was "unjustified" and part of a campaign to discredit him.