30. Any person who, without reasonable excuse, obstructs, hinders or impedes —
(a)
any of the Commission’s members, officers or employees; or
(b)
any investigation officer or authorised assistant mentioned in section 21 or 22,
in the discharge of their duties or the exercise of their powers under this Act or any regulations made under this Act 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 12 months or to both.