Since 2016, Amnesty Decoders has leveraged microtasking and participatory methods from citizen science to address large-scale research questions in human rights. Decode Surveillance NYC launched in May 2021. Over ten weeks, more than 7,000 digital volunteers from around the world analysed every intersection in New York City. The effort found and categorised tens of thousands of CCTV cameras, revealing for the first time which areas of the city are most exposed to surveillance via facial recognition technology.
