There will be some percentage of false positives. If you're feeding the system with a biased, handpicked population, you will get false positive matches from th

There will be some percentage of false positives. If you're feeding the system with a biased, handpicked population, you will get false positive matches from that population and not from other populations. If you are on the shit list, your odds of being accused when you're actually innocent are far, far higher than those of someone not on the shit list. If the shit list is predominately black, then innocent blacks will be sent to jail more often than innocent whites. It's profiling.