4.—(1) A person using a dredge in any part of the Foyle Area for the purpose of the taking of oysters shall—
(a)place any oysters caught in a bag; and
(b)affix to each bag a tag which complies with the requirements set out in paragraph (4).
(2) A tag shall be affixed to the bag by inserting it through the bag and fully securing it using the locking mechanism so that it cannot be removed from the bag without tampering with the lock, breaking or cutting the bag.
(3) Any oysters retained on board a vessel shall be placed in a bag and the bag shall be tagged in accordance with paragraph (2) as soon as practicable, but before the bag is removed from the vessel from which the oysters were caught.
(4) Each tag shall—
(a)have the current fishing period marked on it;
(b)have the letters “LA” marked on it;
(c)bear a tag number issued under these Regulations to the holder of the oyster fishing licence;
(d)not be damaged or altered in any respect;
(e)not be effaced, covered or obscured in any manner whatsoever.