—(1) No person authorised by a gas transporter or gas retailer shall exercise any powers of entry conferred by this Part or the regulations and no licensed gas service worker shall exercise any powers of entry under the regulations unless —
he is a fit and proper person to exercise those powers; or
in cases of emergency, those powers are powers conferred by section 53.
(2) Where, in pursuance of any powers of entry conferred by this Part or the regulations, entry is made on any premises by a person authorised by a gas transporter or gas retailer, or a licensed gas service worker —
the person so authorised or the licensed gas service worker shall ensure that the premises are left no less secure by reason of the entry; and
the gas transporter, gas retailer or licensed gas service worker, as the case may be, shall make good, or pay compensation in accordance with section 60, for any damage caused by such person, or by any person accompanying him in entering the premises, in taking any action therein authorised by this Part or the regulations, or in making the premises secure.
(3) Any person authorised by a gas transporter or a gas retailer or any licensed gas service worker exercising the powers of entry conferred by this Part or the regulations may be accompanied by such persons as may be necessary or expedient for the purpose for which the entry is made, or for the purposes of subsection (2).
(4) If any person intentionally obstructs any other person exercising powers of entry conferred by this Part or the regulations, he 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, or in a case where the obstruction endangers life or property, to a fine not exceeding $50,000 or to imprisonment for a term not exceeding 5 years or to both.
(5) The Authority may by regulations made under section 96 make provision for empowering a person authorised by a gas transporter —
to enter any premises in which there is a gas service pipe connected with a gas main for the purpose of inspecting any gas fitting or gas appliance on the premises, any flue or means of ventilation used in connection with any such gas fitting or gas appliance or any part of the gas pipeline network on the premises, that is to say, any gas service pipe or other apparatus (not being a gas fitting) which is on the premises and is used for the conveyance or supply of gas or is connected with a gas main; and
where he so enters such premises, to examine or apply any test to any such object as is mentioned in paragraph (a) and, where the object is a gas fitting, to verify what supply of air is available for it.