Access control systems play a critical role in maintaining the security of many building and compounds in today’s crime environment by preventing the unauthorized entry by either pedestrian or vehicle traffic. In offices where there are few physical controls on the movement of persons and individuals can move unchallenged through parts of a building or compound, the potential for physical harassment and workplace violence arises plus there is an increased possibility of confidential information loss because individuals (both staff and visitors) can move unchallenged. Access Control systems help reduce these risks at significantly lower costs than placing an individual to control the flow, allowing only authorized access to a particular area or section of a building or complex, but denying access to those who have no need or are not authorized to be there.