NSW Labor leader Chris Minns has called for cashless gaming cards to be tested in an expanded trial.

Dominic Perrottet says its not a matter of if, but how a cashless card is introduced in pubs and clubs.

Following a damning Crime Commission report, the Premier says they are needed to stop money laundering and better control problem gambling.

Chris Minns told Jim Wilson he wants to see some evidence based research before any concrete decisions are made.