3. SCOPE AND ADDITIONAL RESOURCES This publication is designed as a practical guide for the planning, establishment, conduct and follow-up of commissions/missions. The guidance is general and therefore not a comprehensive examination of all the topics covered. It is based on existing internal OHCHR guidance, updated based on the results of reviews, lessons learned exercises involving both members of commissions/missions and staff, and evolving practice, as well as other OHCHR published material on standards and methodologies for human rights and international humanitarian law fact-finding and investigations. Several of the methodological issues covered are dealt with in more detail in other publications and resources produced by OHCHR. Where relevant, these are referred to in the text. A list of key resources can be found in annex I. GUIDANCE AND PRACTICE 5