Physical security and safety : a field guide for the practitioner This book addresses the need for security how to identify the threat against and level of security needed to protect assets and security theories and concepts used to provide an acceptable level of security. Security practices are intermingled with safety issues. OSHA and Fire Regulations complement an overall loss prevention program. This text introduces the Security practitioner to basic tenets of safety and safety management. Safety practitioners will find this book of value in understanding physical security theories concerns and practices