Where any sentence has been passed by a service court within or outside Saint Lucia upon a member of a visiting force of a designated State or upon a dependant, then for the purposes of any legal proceedings within Saint Lucia—
(a) the service court shall be deemed to have been properly constituted;
(b) its proceedings shall be deemed to have been regularly conducted;
(c) the sentence shall be deemed to have been within the jurisdiction of the service court and in accordance with the law of the designated State; and
(d) if the sentence has been executed according to the tenor thereof, it shall be deemed to have been lawfully executed.