Read Pages 90-110 for all this information. Physical security is the first line of defense against potential threats. Perimeters, property, information, people are protected by using the appropriate level of protection from security elements such as lights, hardware, software, equipment, people, policies and procedures .Locking systems come in many varieties. Depending on the level of security warranted will determine which style of system is best. There are simple key lock systems for residential type applications and then there are electronic type of systems for areas like hotels that offer key card access and traceability of when the door is used. There are elaborate locking systems that apply finger print technology, retinal scanning technology, and many other methods for maximum security. Outer perimeter controls are the outside of the building things and architect designs to make the facility secure. This would be doors, windows with hinges and latches, proper air duct security, etc. Anywhere there is access, the perimeter control is some method to help prevent unlawful entry. Inner perimeter controls are for areas inside the building such as top secret rooms, etc. These interior security areas will have specific controls such as locking mechanisms, key card access, or many other means of entrance and exit control. Also, most of these types of areas will be located deep within the facility to help establish a secure perimeter. Lighting can be outer or inner perimeter controlled. Lighting helps to improve the visibility which can help detection and this can deter criminals as they do not want to be seen. Examples of these types of lights would be flood lights, spot lights, fresnol lights, and street lights. Ortmeier, P. J., (2009), Introduction to Security: Operations and Management, (3rd Ed.). Upper Saddle River, NJ: Pearson
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