Where a person has been convicted in a country other than Saint Lucia of an offence against or arising under the law of that country, the provisions of this Act shall apply in like manner as they apply in relation to a conviction and sentence in Saint Lucia if—
(a) there is kept and maintained in the Criminal Records Office of Saint Lucia particulars of that conviction and sentence; and
(b) the circumstances constituting the offences would, if they had occurred in Saint Lucia, constitute an offence against the law of Saint Lucia.