116 Helsinki 1992 (18) After a visit to a participating State, the High Commissioner will provide strictly confidential reports to the Chairman-in-Office on the findings and progress of the High Commissioner’s involvement in a particular question. (19) After termination of the involvement of the High Commissioner in a particular issue, the High Commissioner will report to the Chairman-in-Office on the findings, results and conclusions. Within a period of one month, the Chairman-in-Office will consult, in confidence, on the findings, results and conclusions the participating State(s) concerned and may consult more widely. Thereafter the report, together with possible comments, will be transmitted to the CSO. (20) Should the High Commissioner conclude that the situation is escalating into a conflict, or if the High Commissioner deems that the scope for action by the High Commissioner is exhausted, the High Commissioner shall, through the Chairman-in-Office, so inform the CSO. (21) Should the CSO become involved in a particular issue, the High Commissioner will provide information and, on request, advice to the CSO, or to any other institution or organization which the CSO may invite, in accordance with the provisions of Chapter III of this document, to take action with regard to the tensions or conflict. (22) The High Commissioner, if so requested by the CSO and with due regard to the requirement of confidentiality in his/her mandate, will provide information about his/ her activities at CSCE implementation meetings on Human Dimension issues. Supplement Sources of information about national minority issues (23) The High Commissioner may: (23a) collect and receive information regarding the situation of national minorities and the role of parties involved therein from any source, including the media and non-governmental organizations with the exception referred to in paragraph (25); (23b) receive specific reports from parties directly involved regarding developments concerning national minority issues. These may include reports on violations of CSCE commitments with respect to national minorities as well as other violations in the context of national minority issues. (24) Such specific reports to the High Commissioner should meet the following requirements: • they should be in writing, addressed to the High Commissioner as such and signed with full names and addresses; • they should contain a factual account of the developments which are relevant to the situation of persons belonging to national minorities and the role of the parties involved therein, and which have taken place recently, in principle not more than 12 months previously. The reports should contain information which can be sufficiently substantiated.