(1) A person shall not (a) assault, resist, or wilfully obstruct (i) a police officer in the execution of his duty;(ii) a person lawfully assisting a police officer in the execution of his duty; or(iii) a person lawfully arresting another person;(b) threaten, intimidate, or use abusive language to any such police officer whilst in the performance or execution of his duty or a person assisting a police officer therein; or(c) instigate or incite a person to do any of the things mentioned in the foregoing provisions of this subsection.(1A) A person who contravenes a provision of subsection (1) is guilty of an offence and is liable on summary conviction to a penalty not exceeding 100 penalty units or to imprisonment for a term not exceeding 3 years.(2) A person shall not (a) assault, resist, intimidate, or wilfully obstruct a public officer or an emergency service worker in the execution of his duty, or lawfully performing a duty imposed on him by an Act, or in the exercise of a public duty or authority;(b) threaten or use abusive language to any such person so acting; or(c) instigate or incite a person to do any of the things mentioned in the foregoing provisions of this subsection.(2A) A person who contravenes a provision of subsection (2) is guilty of an offence and is liable on summary conviction to a penalty not exceeding 50 penalty units or to imprisonment for a term not exceeding 2 years.(3) A police officer may arrest without warrant any person committing an offence against subsection (1) or (2) (a) .(4) In this section emergency service worker means (a) a person employed or appointed under the Fire Service Act 1979 ; or(b) a person employed or appointed under the Ambulance Service Act 1982 ; or(c) an emergency management worker referred to in paragraph (a), (b), (c) or (d) of the definition of emergency management worker in section 3 of the Emergency Management Act 2006 ; or(d) an emergency management worker referred to in paragraph (e) of the definition of emergency management worker in section 3 of the Emergency Management Act 2006 in relation to (i) an authorised use of emergency powers under section 40 of the Emergency Management Act 2006 ; or(ii) a declared state of emergency under section 42 of the Emergency Management Act 2006 ;public officer includes any person acting in good faith in the execution, or intended execution, of an Act or a public duty or authority.