se, it may be necessary to ask for a passport, driving licence or other evidence. The passport or driving licence, or a birth certificate, will also provide proof of age, which is required by ISR 12.b. 10.64. Where a person is claiming to act on behalf of the applicant it will be necessary (ISR 11.c) for the agency to satisfy itself that they are authorised to do so. Where the applicant suffers from mental incapacity this may not be a straightforward matter. 10.65. Where the applicant is a birth relative of an adopted person, ISR 11.d requires the agency to confirm the relationship. For example, a birth mother may prove her relationship to the adopted person by providing a copy of her birth certificate, her 200 child’s original birth certificate, and if she was married after the child’s birth, her marriage certificate. Before proceeding with an application the intermediary agency may request any additional documentation it considers appropriate in order to be satisfied on this point. Contacting the appropriate adoption agency: ISR 12 10.66. ISR 12 will only apply in those cases where the intermediary agency is not the AAA. Where the intermediary agency has accepted an application, it must take all reasonable steps to establish whether an adoption agency was involved in the adoption and, if so, to identify the AAA. The applicant may know the adoption agency that arranged the adoption, in which case the intermediary agency needs not make any further enquiries other than to establish if the agency still exists or where the relevant adoption records are held. 10.67. ISR 12.2 sets out the steps that the intermediary agency may take in seeking to identify the AAA, through the Registrar General, the court, or the local authority for the area in which the adoption took place. T