Editing Closed-circuit television (section)

==== Forensics ====
Material collected by surveillance cameras has been used as a tool in post-event forensics to identify tactics and perpetrators of [[terrorist attack]]s. Furthermore, there are various projects—such as [[INDECT]]—that aim to detect suspicious behaviours of individuals and crowds.<ref>{{cite journal |last1=Mould |first1=Nick |last2=Regens |first2=James L. |last3=Jensen |first3=Carl J. |last4=Edger |first4=David N. |date=30 August 2014 |title=Video surveillance and counterterrorism: the application of suspicious activity recognition in visual surveillance systems to counterterrorism |journal=Journal of Policing, Intelligence and Counter Terrorism |volume=9 |issue=2 |pages=151–175 |doi=10.1080/18335330.2014.940819 |s2cid=62710484}}</ref> It has been argued that terrorists will not be deterred by cameras, that terror attacks are not really the subject of the current use of video surveillance and that terrorists might even see it as an extra channel for [[propaganda]] and publication of their acts.<ref>{{cite magazine |date=10 May 2010 |title=In the Petabyte Age of Surveillance, Software Polices |url=http://www.popularmechanics.com/technology/security/how-to/a5776/surveillance-cameras-and-data/ |access-date=4 January 2017 |magazine=Popular Mechanics}}</ref><ref>{{cite web |date=26 October 2016 |title=Mehr Videoüberwachung gegen Terroristen - WDR aktuell - Sendung - Video - Mediathek - WDR |url=http://www1.wdr.de/mediathek/video/sendungen/wdr-aktuell/video-mehr-videoueberwachung-gegen-terroristen-100.html |access-date=4 January 2017 |publisher=WDR}}</ref> In Germany, calls for extended video surveillance by the country's main political parties, [[Social Democratic Party of Germany|SPD]], [[Christian Democratic Union of Germany|CDU]], and [[Christian Social Union in Bavaria|CSU]] have been dismissed as "little more than a [[placebo]] for a subjective feeling of security" by a member of the Left party.<ref>{{cite web |title=Calls increase for sweeping surveillance after Berlin attack |url=http://www.dw.com/en/calls-increase-for-sweeping-surveillance-after-berlin-attack/a-36854715 |access-date=4 January 2017 |publisher=Deutsche Welle}}</ref>

In Singapore, since 2012, thousands of CCTV cameras have helped deter [[loan shark]]s, nab litterbugs, and stop illegal parking, according to government figures.<ref>{{Cite web |date=8 March 2016 |title=Network of CCTV cameras proving effective |url=http://www.straitstimes.com/singapore/network-of-cctv-cameras-proving-effective |access-date=2017-02-06 |publisher=straitstimes}}</ref> In 2013, [[Oaxaca]], Mexico, hired deaf police officers to [[lip reading|lip read]] conversations to uncover criminal conspiracies.<ref>{{Cite web |last=Maria Alvarez |first=Jose |date=November 20, 2013 |title=Mexico's Angels of Silence: Deaf police officers see crime where others don't |url=http://m.theglobeandmail.com/news/world/oaxacas-angels-of-silence-deaf-police-officers-see-crime-where-others-dont/article15520263/?service=mobile |url-status=dead |archive-url=https://archive.today/20131121124759/http://m.theglobeandmail.com/news/world/oaxacas-angels-of-silence-deaf-police-officers-see-crime-where-others-dont/article15520263/?service=mobile#selection-101.1-101.78 |archive-date=21 November 2013 |website=Globe & Mail}}</ref>
[[File:Omar Habhan Westgate attack.webp|thumb|[[Omar Nabhan]], as seen on CCTV during the [[Westgate shopping mall attack]] that resulted in the deaths of 71 people. Authorities observed the attack via the cameras within the mall.]]