56Further provision as to stop notices
(1)A stop notice issued by the Scottish Ministers—
(a)must be served on any person carrying on or in control of the activity to which the notice relates,
(b)if a marine licence has been granted in relation to that activity, may also be served on the licensee.
(2)The Scottish Ministers may by a further notice—
(a)revoke a stop notice,
(b)vary a stop notice so as to substitute a later date for the date specified in accordance with section 55(5)(b).
(3)A person who fails to comply with a stop notice commits an offence.
(4)A person guilty of an offence under subsection (3) is liable—
(a)on summary conviction, to a fine not exceeding £50,000,
(b)on conviction on indictment, to a fine or to imprisonment for a period not exceeding 2 years, or both.