And it is also hard to miss that the racial distribution of the prisoners is very skewed. HN likes customer acquisition probability funnels, you can apply a similar technique looking at how poorer and more minority schools have more police presence on campus, causing those juvenile populations to experience harsher consequences for the same crimes as more wealthy schools, leading to more detention sentences for a subgroup, leading to "crime college" and onward until we arrive at one input to the wealth gap between minority families and others.