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From the mid 1990s on, police departments across the country installed an increasing number of cameras in various public spaces including housing projects, schools and public parks departments. CCTV later became common in banks and stores to discourage theft, by recording evidence of criminal activity. In 1998, 3,000 CCTV systems were in use in New York City. The studies included in the meta analysis used quasi experimental evaluation designs that involve before and after measures of crime in experimental and control areas. However, several researchers have pointed to methodological problems associated with this research literature. First, researchers have argued that the British car park studies included in the meta analysis cannot accurately control for the fact that CCTV was introduced simultaneously with a range of other security related measures. Second, some have noted that, in many of the studies, there may be issues with selection bias since the introduction of CCTV was potentially endogenous to previous crime trends. In particular, the estimated effects may be biased if CCTV is introduced in response to crime trends. It has been argued that problems of selection bias and endogeneity can be addressed by stronger research designs such as randomized controlled trials and natural experiments. A 2017 review published in Journal of Scandinavian Studies in Criminology and Crime Prevention compiles seven studies that use such research designs. The studies included in the review found that CCTV reduced crime by 24 28% in public streets and urban subway stations.

Posted March, 2011 by Admin

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Participatory surveillance is engaged in when individuals knowingly allow websites to access personal information entered in profiles and online forms as well as when easily gathered recordings of oneself and others through commonly owned mobile technology. This process is a type of passive permission for others such as insurance companies, marketing firms and service providers to gain access to our online information even when we have some semblance of a reason to believe it will be kept anonymous or private. The novel 1984 was authored by a liberal and objective socialist not long after the Second World War had ended. The book discusses a future in a totalitarian state where people’s thoughts and behaviors are minutely monitored, interpreted as indicating party alliance or party misalliance and controlled to increase or decrease them depending on the valence. The entire novel was based on a “what if” questions, specifically what if Bitiain had lost the war. Orwell found himself wondering what Britain might have looked like if it fell under the rule of either one of the totalitarian powers that dominated the mid 20th century.

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Perhaps the two most commonly seen yard signs are pretty comparable when it comes to pricing, installation, and monitoring.

The snapshots are extra handy when facial recognition is wrong — which didn't happen often, to be fair.

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Posted February, 2011 by Admin

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