How China’s police used phones and faces to track protesters

As authorities seek to track, intimidate and detain those who marched in defiance of the government’s strict COVID-19 policies last weekend, they are turning to powerful tools of surveillance the state has spent the past decade building for moments such as these

from Moneycontrol Business News https://www.moneycontrol.com/news/business/how-china’s-police-used-phonesfaces-to-track-protesters_16762991.html