The increasing threat of terrorism, vandalism, sabotage, espionage, burglary, and robbery can only be effectively addressed if the structural and organizational measures aimed at protecting vulnerable individuals and assets are complemented by technical precautions, which today are largely electronic. This book presents the most modern technology for securing open areas, controlling access, and reporting burglaries and robberies. The editors and authors have strived for completeness in the overview provided, detailed representation, and general comprehensibility. They illustrate the possibilities and limitations of commercially available security systems, provide project examples, and explain methods that have proven effective in the protection of property and individuals.