Private Security in the 21st Century: Concepts and Applications informs the learner about the historical development of private security and provides new information for educating and training private security personnel in the beginning stages of their career, whether they are a full time student or entry level security worker on the job. This text will not only provide the background information that a prospective security person should know, but also describes the basic operational procedures students need to understand. Private Security in the United States: Concepts and Applications examines current practices in private security and technology.