12.—(1) If any person intentionally or by culpable negligence—
(a)alters the register of any meter used for measuring the quantity of electricity supplied to any premises by an electricity supplier; or
(b)prevents any such meter from duly registering the quantity of electricity supplied,
he shall be guilty of an offence and shall be liable on summary conviction to a fine not exceeding level 3 on the standard scale.
(2) Where any person is prosecuted for an offence under sub-paragraph (1), the possession by him of artificial means for causing an alteration of the register of the meter or, as the case may be, the prevention of the meter from duly registering shall, if the meter was in his custody or under his control, be prima facie evidence that the alteration or prevention was intentionally caused by him.
(3) Where an offence under sub-paragraph (1) has been committed, the supplier may discontinue the supply of electricity to the premises until the matter has been remedied and remove the meter in respect of which the offence was committed.
(4) Where an electricity supplier removes a meter under sub-paragraph (3), he shall keep it safely until the Director authorises him to destroy or otherwise dispose of it.