Summary Offences Act 1953

A person must not, without lawful authority to do so, and knowing that no such lawful authority exists—

interfere with any part of a railway, tramway or track designed for the passage of a vehicle; or

interfere with any signal, cable, system or machinery used in connection with any such railway, tramway or track; or

place any obstruction on any such railway, tramway or track or in any other manner obstruct or cause the obstruction of a vehicle using any such railway, tramway or track; or

do anything else that is likely to result in damage to a vehicle using any such railway, tramway or track.

Maximum penalty: $50 000 or imprisonment for 2 years.

For the purposes of subsection (1), a reference to a railway, tramway or track includes a rail, sleeper, support or other related structure.