NSW Police and its watchdog have closed ranks over "secrecy notices" issued by the Police Commissioner over Sydney's anti-Herzog protest.

The NSW Police Commissioner — who has said police “did what they needed to do” at the anti-Herzog protest — has the power to hide material under the “independent” probe.

Almost three months after Sydney’s Town Hall anti-Herzog rally, where police were filmed punching and attacking attendees, not one officer has faced any action.

The NSW Government’s highly-controversial anti-protest law has been struck down as unconstitutional by the state’s highest court, in a major blow to the ALP Minns Government.

The right to protest is under attack, raising serious concerns about freedom of speech – and the functioning of Australia's democracy.

Peter Lalor was among those attacked by police at the protest against the visit by Israel President Issac Herzog. "We were assaulted on the streets of our town by police itching for a fight," writes the senior journalist.