Re: Lies, damned lies and The Guardian's view of statistics.
> the police would have stopped those people in response to the system's result to check id
No. That is not how it works.
The facial recognition system scans thousands of faces.
It flags up a small number of potential matches.
Each of those potential matches is checked by an officer in the control room
If the officer agrees, a call goes out to stop the individual for an identity check.
The only time a call is made is if the person (or persons) who have re-checked who the computer flagged agree that there is a match. 5 times out of the 6 times, the officer (a person) made the same error of positively matching that the computer did.
Biting the hand that feeds IT
