The Australian state of New South Wales has commenced full enforcement of its new mobile speed cameras, as the penalty-free trial of such cameras in the state has come to an end.

The Roads and Traffic Authority captured 1,374 drivers with the cameras during the trial period, which commenced on July 19, 2010.

When a vehicle is detected by any of the mobile speed cameras and a penalty notice is issued, the driver will incur a fine and licence demerit points.

The agency says mobile speed cameras slow drivers down, change driver behaviour and save lives.

Following public feedback during the trial period, the cars carrying the mobile speed cameras will now be marked.

They will be deployed at 150 locations across six regions in New South Wales.