After the attacks the department actively used social

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After the attacks the department actively used social media as a means of sharing information with the community to find suspects. The Vancouver riots provides another important example of the use of social media in policing. After the Vancouver team lost at the 2011 Stanley Cup Playoffs, a riot started in downtown Vancouver and the rioters destroyed stores and cars. Within an hour of the riot, social media users organized themselves and cooperated with the police. They started to submit photos and videos through Facebook and mobile technologies. People created a kind of surveillance on their own suing social media and this process resulted in direct and rapid cooperation between the community and the police. The Vancouver police obtained and benefited from thousands of pieces of digital evidence related to the events (Trottier, 2012). Hence, social media can provide one of the easiest and cheapest ways for law enforcement agencies to obtain and access evidence in any event. The problem that the law enforcement agencies face is how to obtain accurate information in any communication with the public. As seen in the Vancouver example, social media and mobile technologies can help to solve crimes by providing an effective means of communication between public members and law enforcement agencies. ShotSpotter Detection System : This system is very useful for law enforcement agents in the context of detecting gunfire. These sensors can be located on rooftops and can be used for monitoring the sounds made by a gun. The system can log hundreds of gunfire incidents in a given period of time. For example, approximately 39000 separate incidents of gunfire have been documented with 300 acoustic sensors across 20 square miles of the Washington DC. The system can be installed at sites where the most violent
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European Scientific Journal April 2015 edition vol.11, No.10 ISSN: 1857 – 7881 (Print) e - ISSN 1857- 7431 294 crimes occur to provide information on the specific location of the crime. ShotSpotter detection systems also enable police to report all gunfire incidents, as not all gunfire incidents may have been reported in the past due to an assumption the sound was not gunfire (Petho, Fallis, & Keating, 2013). CCTV: The factors that make a society feel unsafe such as higher crime rates, increased terrorist attacks, and school and workplace shootings have led law enforcement agencies to install closed-circuit television (CCTV) security monitoring systems in many locations. Some of these video cameras are installed inside police vehicles and are used to monitor stops and vehicle movement. With the development of technology, the cost of CCTV equipment has declined. Thus many security managers have started to install and implement security monitoring systems in the locations they are responsible for. As well, wireless technology has enabled law enforcement agencies to monitor security cameras from their laptops and mobile phones.
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