3. The Committee may decide to obtain additional information from the following: (a) Representatives of the State party concerned; (b) Governmental organizations; (c) Non-governmental organizations; (d) Individuals. 4. The Committee shall decide the form and manner in which such additional information will be obtained. 5. The Committee may, through the Secretary-General, request any relevant documentation from the United Nations system. Establishment of an inquiry Rule 84 1. Taking into account any observations that may have been submitted by the State party concerned, as well as other reliable information, the Committee may designate one or more of its members to conduct an inquiry and to make a report within a fixed time limit. 2. An inquiry shall be conducted confidentially and in accordance with any modalities determined by the Committee. 3. Taking into account the Convention, the Optional Protocol and the present rules of procedure, the members designated by the Committee to conduct the inquiry shall determine their own methods of work. 4. During the period of the inquiry, the Committee may defer the consideration of any report that the State party concerned may have submitted pursuant to article 18 of the Convention. Cooperation of the State party concerned Rule 85 1. The Committee shall seek the cooperation of the State party concerned at all stages of an inquiry. 2. The Committee may request the State party concerned to nominate a representative to meet with the member or members designated by the Committee. 3. The Committee may request the State party concerned to provide the member or members designated by the Committee with any information that they or the State party may consider relates to the inquiry. 123