(1) The regulations may make provision for and in relation to:
(a) regulating, restricting or proh ibiting the entry of persons on to any land , building or structure owned by or under the control of the Gallery; or
(b) regulating the conduct of persons on any such land , building or structure ; or
(c) the removal of persons from any such land, building or structure .
(2) A reference in this section to any land, building or structure owned by or under the control of the Gallery includes a reference to a part of any such land , building or structure .