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NAT’L – LE – How law enforcement is using technology to track down people who attacked the US Capitol building

After rioters flooded the U.S. Capitol building on Jan. 6, there was an immediate call for those who overran officers on the scene and swarmed the House and Senate floors, as well as congressional members’ personal offices, to be identified, arrested and prosecuted. The coordinated law enforcement response to this incident is massive. As researchers who study criminal justice, we see that law enforcement agencies are accessing large amounts of information via technological sources to investigate the attack on the U.S. Capitol building. High-definition security cameras, facial recognition technology, location services acquired from cellphones and third-party apps, and accessing archival evidence on social media are all used to identify perpetrators of crimes and tie them to specific places and times. While watchdog groups have raised legitimate concerns about the use of government and private-sector surveillance technology to identify people who might commit violent acts at some future point, there is much less concern raised about the use of technology to identify, arrest and prosecute individuals once these crimes have occurred. In the days since the breaching of the Capitol, information has flowed continuously to law enforcement with names and/or images of suspected participants in the unrest. Facial recognition technology can be used to compare images obtained by law enforcement – particularly those images taken from the network of security cameras within and outside the Capitol complex – to positively identify persons of interest. Facial recognition systems work by matching a face in a video or photo with a face in a database that is associated with a person’s name and other identifying information. Beyond using public records, law enforcement agencies have been turning to private companies to access large databases of identified faces. A growing body of evidence shows the large amount of data some companies have been collecting from social media and other publicly available sources, as well as from CCTV systems in public spaces around the globe. Law enforcement agencies can simply purchase the services of these companies.  [full article]

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