> The police are only supposed to be using this system to narrow down choices, and then have a human sorting out possible matches, which this should do very wel

> The police are only supposed to be using this system to narrow down choices, and then have a human sorting out possible matches, which this should do very well. I'd rephrase that Amazon recommends (Rekomends?) using a CI of 99% for law enforcement, and that it only be one factor in policing. --- We're getting to a brave new world here, but there is a lot of parallels with the current one. A common trick for reducing speeding tickets is to request things like when the last time the radar was calibrated, and the date of certification of it's operator. Soon, your lawyer can challenge ML based convictions by requesting the coefficients of the model. Also, the police will use every trick in the book to get an arrest, so unless it's clearly illegal (and in some cases that's not enough to stop the police), you can't say the "police should..." do anything.