Designed for police officers of any rank and assignment, the Problem-Specific Guides summarize knowledge about how police can analyze and reduce particular crime problems in local communities. This guide begins with an analysis of the benefits and problems associated with the use of CCTV systems for public surveillance purposes, which include the unintended consequences of displacement of crime, increased citizen fear of crime, and increased reporting of certain types of crimes. Benefits are, ironically, a reduced fear of crime and the ability to quickly recognize and respond to a medical emergency. Evaluation findings of CCTV programs are presented which generally suggest that CCTV is better at combating property crimes than violent or public order crimes; CCTV works best in small, well-defined areas; and achieving statistically significant crime reductions with CCTV can be difficult. Implementation considerations are discussed and include a series of questions to guide police departments in their decision on whether to implement a system. Questions direct police departments to consider whether CCTV is the best option, where the cameras will be located, who will operate the system, and who and what should be watched. Police departments should also evaluate whether they have the human and budgetary capacity to run an effective CCTV program. Managing the public concern should also be a consideration of police departments and generally involves issues related to privacy and constitutionality. Finally, the next generation technology is briefly described as low-level x-ray imaging and facial recognition systems. Appendixes, endnotes, references, recommended readings