Working with volunteers. Building cohesive and safer communities through volunteering, is the title of the publication from the CECOPS project (2010-2011). Efus was partner of this project, co-financed by the European Commission, aimed at analysing the role of voluntary citizens in urban security activities in the United Kingdom, France, Italy and Lithuania. The publication is the result of the case studies that took place during the project, and their analysis identified 11 major principles for using volunteers in the best way in the field of civic order, policing and security. Over 20 case studies are presented in detail together with many other contributions.