3(1)A person who (on or after the first appointed day) becomes the occupier of any premises on or in which an audible intruder alarm has been installed, shall not permit the alarm to be operated unless paragraph 5 is satisfied.
(2)A person who without reasonable excuse contravenes sub-paragraph (1) shall be guilty of an offence and liable on summary conviction—
(a)where the alarm does not comply with any prescribed requirements, to a fine not exceeding level 4 on the standard scale, and
(b)in any other case, to a fine not exceeding level 2 on the standard scale.