"Thankfully" part is wrong. We don't use any explicit probability thresholds to judge people guilty or not, we rely on judge's gut feeling about the defendant, which is very likely even more biased.
With a serious probability threshold being black would count slightly against you, but it would be very small bias.
This thread is for discussing anything that doesn't seem to deserve its own post.
If the resulting discussion becomes impractical to continue here, it means the topic is a promising candidate for its own thread.