[sdenton4]

Just to add a bit, you can look at the justice system as a binary classifier if you squint hard enough. So it has both false positives and false negatives, both of which are difficult to actually measure.

On the one hand, you have poc arrested and convicted of crimes that wouldn't be charged in other parts of town (arguably false negatives, amongst the non poc). On the other, prosecutors use the plea bargain system to get people to plea out for smaller charges instead of risking decades of their lives at trial; this is an excellent way to produce false positives.