Guardhouse
In 21st century commercial, industrial, institutional, governmental, or residential facilities, Guardhouses are generally placed at the entrance as checkpoints for securing, monitoring and maintaining access control into the secured facility. In the case of small to mid-sized facilities, generally, the entire physical security envelope is controlled from the Guardhouse.One of the general orders of a sentry in the United States Navy and Marine corps is to "Repeat all calls more distant from the guardhouse than my own." Guardhouses thus serve as central communications hubs for outlying sentry posts, being where the Corporal of the Guard is stationed. When sentries are relieved by their replacements, the sentry stationed at the Guardhouse, designated "No. 1", is conventionally relieved first. Modern guardhouses are manufactured with welded, galvanized steel construction, insulated, include heat and light, have 360 degree visibility, and can also be bullet resistant. These guardhouses keep security guards comfortable as well as secure. The first modern guardhouse was manufactured by Par-Kut International in 1954. In 21st century, guardhouses have provided more options such as exterior floodlights, reflective bullet resistant glass, gun ports, elevated platforms, and highly mobile trailer mounting, anti fatigue floor mats, dimmable interior light and a built in bathroom.
Sources:Captain Wikipedia. Retrieved from: [https://en.wikipedia.org/wiki/Captain]