The objectives and elements of security management, as well as the role of the security manager, are introduced. The purpose of a security department is defined as that of helping senior management implement security policies and procedures. The relationships of the corporate security director with corporate officers and department heads, controllers and auditors, guests, corporate counsel, and credit managers are discussed, with particular reference to the necessity of maintaining cooperative associations with all parties. Similarly, other areas in which security directors have a vital interest, such as personnel and security practices and procedures, liaison with law enforcement officers, and security records and communications, are described as requiring collaborative relationships and teamwork. The varied duties outlined for corporate security directors are seen as applicable to individual property security directors whose hotels/motels are not chain owned or operated. Similarly, cooperation with controllers and auditors, credit managers, and guests is considered a crucial factor in effective property security management. Also discussed are the duties and responsibilities, composition and training, authority, and police and fire liaison techniques of both corporate and property security departments. It is noted that a major difficulty encountered by both corporate and property security directors is the inability to appreciate the relationship between security on the one hand and operations and costs on the other. It is concluded that for optimum success and benefit to the hotel/motel, its guests, and its staff, security programs must be economically and operationally feasible and must be seen as just another facet of sound hotel/motel management. An index and 11 suggested works are included.