62It follows that, before refusing access to a document originating from a Member State, the institution concerned must examine whether that State has based its objection on the substantive exceptions in Article 4(1) to (3) of Regulation No 1049/2001 and has given proper reasons for its position. Consequently, in the procedure for the adoption of a decision to refuse access, the Commission must make sure that those reasons exist and refer to them in the decision it makes following that procedure (Sweden v Commission, paragraph 99).
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