s 20 Obstruction of authorised officer or senior authorised officer
20. Any person who, without lawful excuse —(a) refuses an authorised officer or a senior authorised officer, or a person acting in his or her assistance, access to any conveyance or premises to which the officer is entitled under this Part; (b) obstructs or hinders an authorised officer or a senior authorised officer, or a person acting in his or her assistance, in the execution of any power conferred upon that officer by this Part; or (c) refuses to provide reasonable assistance to an authorised officer or a senior authorised officer, or a person acting in his or her assistance, in the execution of any power conferred upon that officer by this Part, when required to do so by that officer or person, shall be guilty of an offence and shall be liable on conviction to a fine not exceeding $10,000 or to imprisonment for a term not exceeding 6 months or to both.