G. Methods of work The methods of work are another fundamental document guiding the work of commissions/ missions, which must be defined and agreed at the beginning of their operations. It sets out the methods the commission/mission will use in fulfilling its mandate, including: 1. What sources of information it will use, including whether it will rely on primary or secondary sources, whether it will use open source material, examine video material and satellite imagery; 2. How it will assess and verify information; 3. How it will gather information, including whether it will visit the country concerned (or other countries), undertake visits to sites of violations, interview victims and witnesses, make a public call for submissions, receive submissions from Member States, undertake expert analysis or request opinions from experts; 4. How it will ensure the confidentiality of information and the protection of sources and information; 5. How it will ascertain the consent of sources on the use of information they provide to the commission/mission. The methods of work must be based on international standards and best practices on human rights fact-finding and investigations. They must ensure that the commission’s/ mission’s information-gathering and analysis take fully into account gender issues, for example, with regard to the choice of sources and ways of accessing them, and the gathering and presentation of disaggregated data. They underpin the integrity of the commission/mission through strengthening the independence and impartiality of its information collection and analysis processes, ensuring that these are beyond reproach. H. Rules of procedure In addition, the commission/mission may consider adopting rules of procedure which further define its internal methods of work and responsibilities. While commissions/missions with shorter-term mandates may have less need for such a comprehensive set of rules, it is still advisable to review and consider the model standard rules of procedure in annex II. This model was developed by OHCHR based on the 1970 Model rules of procedure for United Nations bodies dealing with violations of human rights, and modified on the basis of experience. GUIDANCE AND PRACTICE 69