A/HRC/5/21 page 43 Article 9 - Letters of allegation With a view to achieving effectiveness and harmonization in the handling of letters of allegation by special procedures, mandate-holders shall assess their conformity with reference to the following criteria: (a) The communication should not be manifestly unfounded or politically motivated; (b) The communication should contain a factual description of the alleged violations of human rights; (c) The language in the communication should not be abusive; (d) The communication should be submitted by a person or a group of persons claiming to be victim of violations or by any person or group of persons, including non-governmental organizations, acting in good faith in accordance with principles of human rights, and free from politically motivated stands or contrary to, the provisions of the Charter of the United Nations, and claiming to have direct or reliable knowledge of those violations substantiated by clear information; (e) The communication should not be exclusively based on reports disseminated by mass media. Article 10 - Urgent appeals Mandate-holders may resort to urgent appeals in cases where the alleged violations are time-sensitive in terms of involving loss of life, life-threatening situations or either imminent or ongoing damage of a very grave nature to victims that cannot be addressed in a timely manner by the procedure under article 9 of the present Code. Article 11 - Field visits Mandate-holders shall: (a) Ensure that their visit is conducted in compliance with the terms of reference of their mandate; (b) Ensure that their visit is conducted with the consent, or at the invitation, of the State concerned; (c) Prepare their visit in close collaboration with the Permanent Mission of the concerned State accredited to the United Nations Office at Geneva except if another authority is designated for this purpose by the concerned State; (d) Finalize the official programme of their visits directly with the host country officials with administrative and logistical back-up from the local United Nations Agency and/or Representative of the High Commissioner for Human Rights who may also assist in arranging private meetings;