This book is intended to provide guidance to international and national actors on the potential role of customary justice systems in fostering the rule of law and access to justice in post-conflict, post-disaster and development contexts. The book wishes to provoke thought among practitioners about the objectives of customary law interventions, to encourage critical assessments of the criteria on which programming decisions are made, and to provide tools to assist in gauging the extent to which interventions are having a positive impact.