Passenger Transport (General) Regulation 2017
68O Unauthorised occupation of reserved seats
(1) The rail transport operator of a railway may, by an appropriate notice attached to (or in the vicinity of) a seat in a train used on the railway, reserve the seat for a passenger.(2) An authorised officer may direct a person to leave a seat reserved for another person if the officer is not satisfied that the person is occupying the seat with the permission of either the person for whom it is reserved or an authorised officer.(3) A person must comply with a direction given to the person under this clause.Maximum penalty: 5 penalty units.