"It is disproportionately true that black people and poor people are committing the crimes," says professor. "Once that happens right you are screwed in ways that i don't think anybody who doesn't know someone very close to them who has had that happen to them or had it happen to themselves" If you're committed to addressing this problem, work for a law firm that either defends poor defendants or tries to establish some sort of right against no-knock raids. Work with prisoners to provide job training and opportunities once they get out of prison.