Revised Guidelines for the Consideration of Communications ii. When the Committee determines to call any witness, expert or other person, the Secretary shall send a written call to the witness or expert concerned. The invitation to the hearing shall indicate: a) The parties to the Communication; b) A summary of the facts or issues in relation to which the Committee desires to hear the witness or expert. iii. Any such person may, if they do not have sufficient knowledge of the working languages of the Committee, be authorised to speak in any other language to be interpreted in one of the Working Languages of the Committee. iv. The Chairperson or any member delegated by the Chairperson shall preside over the hearing, and shall verify the identity of the witnesses or experts or other persons appearing for a hearing. V. Prior to proceeding to the hearing the witnesses or experts or other persons appearing for a hearing, the Chairperson or the presiding member of the Committee shall remind them to make truthful statements and provide all relevant information in accordance with the best of their knowledge, findings and sincere belief. 6) Children’s participation i. The Committee shall take measures to ensure the effective and meaningful participation of the child or children concerned by the consideration of the Communications. ii. When the child is capable of expressing his opinions, he should be heard by the Committee through a child friendly process. 7) Protection of persons participating in hearings The State Party to the Communication shall make an undertaking not to victimise or persecute the Complainant and/or any person representing them, the witnesses or experts or experts or carry out any reprisals against their family members, because of their statements or opinions given before the Committee. 15