Where the master of a vessel charges any member of his or her crew, or a stowaway or an extra hand before a District Court with an offence committed at some time prior to the vessel's arrival or while the vessel is in a port in Saint Lucia then the Magistrate —
(a) if he or she convicts the person charged, may, in awarding punishment, order that on the expiration of the sentence or on the sooner readiness of the vessel to proceed to sea such person shall be conducted in custody aboard the vessel for conveyance away from Saint Lucia;
(b) if he or she convicts the person charged, may, in order to discharge, order such person to be immediately conveyed back to the vessel.