Facial Recognition Primer

Law enforcement agencies use facial recognition technology (FRT) to assist in identifying unknown people—suspects, victims, witnesses, and others—captured on video or in photos. It has become a widespread investigative tool, despite issues with reliability and inconsistencies in how it is used by law enforcement. The below document explains the technology in more detail and walks through some potential arguments for attorneys challenging facial recognition evidence in their cases. If you are looking for more information, or assistance with FRT in a case, contact us at 4ac@nacdl.org. 



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