Rio de Janeiro Oi facial recognition pilot

The Rio de Janeiro state government carried out a facial recognition test project in 2019 with the aim of identifying criminals and preserving public order. 

Operated by telecoms company Oi, the project was divided into two phases: first, limited to Copacabana during the 2019 carnival, and second, in the Maracanã neighbourhood and around Santos Dumont Airport from June to October 2019.

The authorities declared the first phase a success, with five search and seizure warrants served, three arrest warrants issued, and three vehicles recovered.