Open site security layered defense system

          Identify, describe, and discuss three of the following at your current workplace (if necessary, another location): a barrier, door, lock, etc. You should describe the location of these barriers and explain why you think these specific barriers were placed at each location. Recommend a supplemental measure for each of the three locations you identified. You may attach images or vides to enhance visualization/orientation. Explain a combination of at least three aspects of open site security layered defense system (at least one for each layer of defense) that a security manager could use to help secure their site. To facilitate overall comprehension, clearly identify and describe your chosen barriers and include sketches or drawings, as needed.