(1) A person who wilfully obstructs any person acting in the execution of this Act commits an offence against this Act.

(2) A person who fails to give to any person acting in the execution of this Act any assistance which that person may reasonably request him to give, or any information which that person is expressly authorised by this Act to call for or may reasonably require, or who, when required to give any such information, knowingly makes any false or misleading statement in relation thereto, shall be treated as having wilfully obstructed that person.