Editing Physical security (section)

== Overview ==
Physical security systems for protected facilities can be intended to:<ref>{{cite book|author=Garcia, Mary Lynn|title=Design and Evaluation of Physical Protection Systems|publisher=Butterworth-Heinemann|year=2007|isbn=9780080554280|pages=1–11|url=https://books.google.com/books?id=NDMVuN_4VfIC&pg=PA1|url-status=live|archive-url=https://web.archive.org/web/20130921071009/http://books.google.com/books?id=NDMVuN_4VfIC&pg=PA1|archive-date=2013-09-21}}</ref><ref>{{Cite book|title=Field Manual 3-19.30: Physical Security|publisher=Headquarters, United States Department of Army|year=2001|chapter=Chapter 2: The Systems Approach|url=http://www.globalsecurity.org/military/library/policy/army/fm/3-19-30/ch2.htm|url-status=live|archive-url=https://web.archive.org/web/20130921055650/http://www.globalsecurity.org/military/library/policy/army/fm/3-19-30/ch2.htm|archive-date=2013-09-21}}</ref><ref name="Security_Engineering">{{cite book| author = Anderson, Ross| title = Security Engineering| year = 2001| publisher = Wiley| isbn = 978-0-471-38922-4| url-access = registration| url = https://archive.org/details/securityengineer00ande}}</ref>
* deter potential intruders (e.g. warning signs, [[security lighting]]);
* detect intrusions, and identify, monitor and record intruders (e.g. [[security alarm|security alarms]], [[access control]] and CCTV systems);
* trigger appropriate incident responses (e.g. by security guards and police);
* delay or prevent hostile movements (e.g. [[door security|door reinforcements]], [[Grille (architecture)|grilles]]);
* protect the assets (e.g. [[safe|safes]]).

It is up to security designers, architects and analysts to balance security controls against risks, taking into account the costs of specifying, developing, testing, implementing, using, managing, monitoring and maintaining the controls, along with broader issues such as [[aesthetics]], [[human rights]], health and safety, and societal norms or conventions.  Physical access security measures that are appropriate for a high security [[prison]] or a military site may be inappropriate in an office, a home or a vehicle, although the principles are similar.