This article examines the links between peace operations and combating transnational organized crime. It argues that while UN Security Council mandates direct UN missions to support establishing the rule of law in states that host peace operations, their role in addressing organized crime is more implicit than explicit. This article notes, however, that UN panels of experts, small fact-finding teams appointed to monitor targeted sanctions, may offer insight into, and options for addressing, such criminal networks. Panel findings and recommendations, however, are not integrated with related UN efforts to build the rule of law. This lack of integration reflects a need, on the part of the UN and its member states, to address better the ability of peace operations, UN panels of experts, and other tools for peacebuilding to contribute more effectively to fighting spoiler networks and organized crime.