10.—(1) This regulation applies if a fixed penalty notice is given to any person under regulation 9.
(2) If the person asks to be tried for the alleged offence, proceedings may be brought against the person.
(3) If by the end of the period mentioned in regulation 9(3)(a)—
(a)the penalty has not been paid, and
(b)the person has not made a request to be tried,
a sum equal to one and a half times the amount of the penalty (“the enhanced sum”) may be registered under regulation 12 for enforcement against the person as a fine.