https://www.theregister.co.uk/2018/05/24/met_police_wont_use_facial_recognition_tech_at_notting_hill_this_year/

London cops will not use controversial and inaccurate facial recognition technology at this year's Notting Hill Carnival – in a departure from the trend over the previous two years.

The Metropolitan Police have been using the technology since the 2016 carnival, which takes place on the August bank holiday weekend, despite intense pressure from campaigners and politicians.