"The city links the 1,500 cameras that police have placed in trouble spots with thousands more—police won't say how many—that have been installed by other government agencies and the private sector in city buses, businesses, public schools, subway stations, housing projects and elsewhere. Even home owners can contribute camera feeds. Rajiv Shah, an adjunct professor at the University of Illinois at Chicago who has studied the issue, estimates that 15,000 cameras have been connected in what the city calls Operation Virtual Shield, its fiber-optic video-network loop."
There are so many camera feeds coming in that police and officials can't monitor them all, but when alerted to a situation, can zoom in on the area affected. The ACLU has requested a total number of video feeds and cameras, but as of yet, this information has not been supplied. Worries have been raised about the possible abuses of the system... other cities have had cases where male police officers would follow females via video even though no suspicious behavior was exhibited. Chicago Police brush off such criticism, saying that all use of the system is logged, and that the benefits of public safety and law enforcement are huge."
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