Exclusive: Algorithms allegedly being used to study data of thousands of people, in project critics say is ‘chilling and dystopian’

The types of information processed includes names, dates of birth, gender and ethnicity, and a number that identifies people on the police national computer.

Also to be shared – and listed under “special categories of personal data” - are “health markers which are expected to have significant predictive power”, such as data relating to mental health, addiction, suicide and vulnerability, and self-harm, as well as disability.

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