9. Confidentiality
The Central Authority and all competent authorities in Nigeria and the requesting or requested countries respectively, as the case may be, shall use their best endeavours to keep confidential any request and its contents and the information and materials supplied in compliance with a request, unless such disclosure occurs in the course of criminal proceedings or where the disclosure is otherwise authorised by the Central Authority for Nigeria or that other country.
3. El Estado requerido preservará el carácter confidencial de toda solicitud de cooperación y de los documentos que las justifiquen, salvo en la medida en que su divulgación sea necesaria para tramitarla.