8 (d) a document that is a copy or draft of, or contains extracts from, a document referred to in paragraph (a), (b) or (c); or (e) a document the disclosure of which would involve the disclosure of any deliberation or decision of Cabinet, other than a document by which a decision of Cabinet was officially published. (2) Subsection (1) shall cease to apply to a document brought into existence on or after the commencement of this Act when a period of ten years has elapsed since the last day of the year in which the document came into existence. (3) Subsection (1) does not apply to a document that contains purely statistical, technical or scientific material unless the disclosure of the document would involve the disclosure of any deliberation or decision of Cabinet. (4) For the purposes of this Act, a certificate signed by the Secretary to Cabinet certifying that a document as described in a request would, if it existed by one of a kind referred to in subsection (1), establishes that, if such a document exists, it is an exempt document. (5) In this section (a) "Cabinet" includes a committee or subcommittee of Cabinet; (b) a reference to a document includes a reference to a document whether created before or after the commencement of this Act. 25. (1) A document is an exempt document if it contains information, the disclosure of which would be likely to prejudice the defence of the Republic of Trinidad and Tobago. (2) A document is an exempt document if it contains information, the disclosure of which would be likely to prejudice the lawful activities of the security or intelligence services. (3) For the purposes of this Act, a certificate signed by the Minister certifying that a document as described in a request would, if it existed, be one of a kind referred to in subsection (1) or (2), established that if such a document exists, it is an exempt document. 26. A document is an exempt document if disclosure under this Act would be contrary to the public interest and disclosure (a) would prejudice relations between the Government of the Republic of Trinidad and Tobago and the government of any other State; (b) would prejudice relations between the Government of the Republic of Trinidad and Tobago and an international organisation of States or a body thereof; (c) would divulge any information or matter communicated in confidence by or on behalf of the government of another State to the Government of the Republic of Trinidad and Tobago or to a person receiving a communication on behalf of the government of that State; or (d) would divulge any information communicated in confidence by or on behalf of an international organisation of states or a body thereof to the Government of the Republic of Trinidad and Tobago or to a person receiving a communication on behalf of that international organisation or body. 27. (1) Subject to this section, a document is an exempt document if it is a document the disclosure of which under this Act (a) would disclose matter in the nature of opinion, advice or recommendation prepared by an officer or Minister of Government, or consultation or deliberation that has taken between officers, Ministers of Government, or an officer and a Minister of Government, in the course of, or for the purpose of, the deliberative processes involved in the functions of a public authority; and (b) would be contrary to the public interest. (2) In the case of a document of the kind referred to in section 8(1), the matter referred to in subsection (1)(a) does not include (a) matter that is provided for the use or guidance of, or is used or may be used for, the purpose of making decisions or recommendations, or enforcing written laws or schemes, referred to in section 8(1); (b) factual information; (c) the analysis, interpretation or evaluation of, or any projection based on factual information; (d) a statistical survey; (e) a report by a valuator, whether or not the valuator is an officer of the public authority; (f) an environmental impact statement or similar record; (g) a report of a test carried out on a product for the purpose of purchasing equipment for a public authority or a consumer test report; (h) a report or study on the performance or efficiency of a public authority, whether the report or study is of a general nature or is in respect of a particular programme or policy; (i) a feasibility or other technical study, including a cost estimate, relating to a policy or project of a public authority; (j) a report containing the results of field research undertaken before the formulation of a policy proposal; (k) a final plan or proposal to change a programme of a public authority, or for the establishment of a new programme, including a budgetary estimate for the programme, whether or not the plan or proposal is subject to approval, unless the plan or proposal is to be submitted to Cabinet or a committee or subcommittee of Cabinet;