Editing Physical security (section)

=== Deterrence ===
The goal of deterrence methods is to convince potential attackers that a successful attack is unlikely due to strong defenses.

The initial layer of security for a campus, building, office, or other physical space can use [[crime prevention through environmental design]] to deter threats. Some of the most common examples are also the most basic: warning signs or window stickers, [[fence]]s, vehicle barriers, vehicle height-restrictors, restricted access points, [[security lighting]] and trenches.<ref>For a detailed discussion on natural surveillance and CPTED, see {{cite book|author=Fennelly, Lawrence J.|title=Effective Physical Security|publisher=Butterworth-Heinemann|year=2012|isbn=9780124158924|pages=4–6|url=https://books.google.com/books?id=hfuODGScv_0C&pg=PA4|url-status=live|archive-url=https://web.archive.org/web/20180105015948/https://books.google.com/books?id=hfuODGScv_0C&pg=PA4|archive-date=2018-01-05}}</ref><ref name="PhysicalSecurity">{{cite book| author = Task Committee| author2 = Structural Engineering Institute| title = Structural Design for Physical Security| year = 1999| publisher = ASCE| isbn = 978-0-7844-0457-7| url = https://books.google.com/books?id=1j5TNJCwI6wC| url-status = live| archive-url = https://web.archive.org/web/20180105015948/https://books.google.com/books?id=1j5TNJCwI6wC&printsec=frontcover| archive-date = 2018-01-05}}</ref><ref>{{Cite book|author=Baker, Paul R.|chapter=Security Construction Projects|editor=Baker, Paul R.|editor2=Benny, Daniel J.|title=The Complete Guide to Physical Security|publisher=CRC Press|year=2012|isbn=9781420099638|chapter-url=https://books.google.com/books?id=U7U6Lc2ZYaYC&pg=PA47|url-status=live|archive-url=https://web.archive.org/web/20180105015948/https://books.google.com/books?id=U7U6Lc2ZYaYC&pg=PA47|archive-date=2018-01-05}}</ref><ref>{{Cite book|title=Field Manual 3-19.30: Physical Security|publisher=Headquarters, United States Department of Army|year=2001|chapter=Chapter 4: Protective Barriers|url=http://www.globalsecurity.org/military/library/policy/army/fm/3-19-30/ch4.htm|url-status=live|archive-url=https://web.archive.org/web/20130313231758/http://www.globalsecurity.org/military/library/policy/army/fm/3-19-30/ch4.htm|archive-date=2013-03-13}}</ref>