A high visibility presence of security guards creates and enhances an equal level of trust and security among people. As one cannot have an unlimited number of guards, patrols are made necessary. Documenting and controlling patrols are essential to assure that patrol guards are effectively attending to their purposes. An electronic guard tour system is the right way to accomplish this task. A guard tour system is a means of recording each time a security guard reaches a strategic point on his/her tour. It is also a means of taking note of certain incidents, such as a broken door or glass window. Since security guards should concentrate on “detecting, deterring, observing and reporting,” guard tour systems need be simple and extremely resistant. Choosing the correct number of security guards and tracking and controlling their patrols with an electronic guard tour system can help establish the proper proportion between security costs and effective security.