. . . , a person guilty of an offence against this Part of this Act shall be liable on summary conviction—
in the case of a first offence against this Part of this Act, to a fine not exceeding level 5 on the standard scale; and
in the case of a second or subsequent offence against this Part of this Act, to a fine not exceeding level 5 on the standard scale,
together, in any case, with a further fine not exceeding £50 for each day on which the offence continues after the conviction.
In determining whether an offence is a second or subsequent offence against this Part of this Act, account shall be taken of any offence—
under section 24 of the Public Health (Scotland) Act 1897 by way of contravening a decree or interdict relating to noise; or
under section 95 of the Public Health Act 1936 by way of contravening a nuisance order relating to noise, ; or
under section 80(4) of the Environmental Protection Act 1990,
as if it were an offence against this Part of this Act.