22. — (1) Where the owner of, or of a share in, a vessel is convicted on indictment of an offence referred to in section 8 (6) (c) or 15 (7) (c) or an offence under section 12 (2), 13 (3) (a) or 18 (5) (b) and the person has been convicted previously of any of those offences, the court concerned may, in addition to or instead of any penalty that it may impose under the provision concerned, order the vessel with its equipment, fittings and furnishings, or the appropriate share thereof, to be and to be adjudged forfeited to the State and may make such other orders as it considers necessary or expedient for the purpose of giving effect to the forfeiture.

(2) Whenever an order is made under this section, an authorised officer may, for the purpose of giving effect thereto—

(a) seize and detain the vessel concerned, and

(b) do such other things as are authorised by the order or are necessary for the purpose aforesaid.