Southern African Development Community ARTICLE 9 AUTHENTICATION OF DOCUMENTS 1. Where the laws of the Requested State require authentication, documents shall be authenticated in accordance with the domestic laws of the Requesting State. 2. Authentication procedures of State Parties shall be communicated to the Secretariat. ARTICLE 10 COSTS 1. The Requested State shall pay all costs relating to the execution of the request, except for the fees of expert witnesses, the costs of translation, interpretation, and transcription, and the allowances and expenses related to travel of persons pursuant to Articles 12, 13 and 14, which costs, fees, allowances, and expenses shall be paid by the Requesting State, unless the Parties agree otherwise. 2. If, during the execution of a request, it becomes apparent that fulfillment of the request will entail expenses of an extraordinary nature, the respective Central Authorities shall consult to determine the terms and conditions under which execution may continue. ARTICLE 11 LIMITATIONS ON USE 1. The Requested State may require that the Requesting State does not use any information or evidence obtained under this Protocol in any investigation, prosecution, or proceeding other than that described in the request without the prior consent of the Requested State. In such cases, the Requesting State shall comply with the requirement. 2. The Requested State may request that information or evidence furnished under this Protocol be kept confidential or be used only subject to terms and conditions it may specify. If the Requesting State accepts the information or evidence subject to such conditions, the Requesting State shall comply with the conditions. SADC Protocol on Mutual Legal Assistance in Criminal Matters 8