Section 51 — Obstructing investigators in execution of duties

A person who, without reasonable excuse, obstructs, hinders or impedes any investigator in the performance or execution of a duty or anything which the investigator is authorised, empowered or required to do under this Act shall be guilty of an offence and shall be liable on conviction to a fine not exceeding $20,000 or to imprisonment for a term not exceeding 12 months or to both.