Criminalized power structures (CPS) are illicit networks that profit from transactions in black markets and from criminalized state institutions while perpetuating a culture of impunity. These criminalized power structures are the predominant spoilers of peace settlements and stability operations. This volume focuses on the means available to practitioners to cope with the challenges posed by CPS along with recommendations for improving their efficacy and an enumeration of the conditions essential for their success. The means range from economic sanctions and border controls to the use of social media and criminal intelligence-led operations. Each step of this toolkit is detailed, explaining what each tool is, how it can be used, which type of CPS it is best suited to address, and what is necessary to ensure success of the peace operations. The effectiveness of the tool is also assessed and its use is illustrated through real life situations, such as international supply chain controls to prevent the looting of natural resources in Western Africa or the intervention of international judges and prosecutors in Kosovo. A companion volume, Criminalized Power Structures: The Overlooked Enemies of Peace, articulates a typology for assessing the threats of CPS illustrated by many case studies.