Any—
(a) evidence or information obtained or, as the case may be, given or provided, by any person under a request such as referred to in section 6, 9, or 10; or
(b) article, record or thing obtained under a request such as is referred to in section 6 or 8,
shall be used, by or on behalf of Saint Lucia, only for the purpose of criminal proceedings to which the request related or, as the case may be, any criminal proceedings consequent on the investigation to which the request related, unless the Commonwealth country to which the request was made consents to the evidence or information being so used for the purposes of any other criminal proceedings.