A few short weeks after the killing of Tyre Nichols, UCLA Law Professor Joanna Schwartz released a very timely book. It's called Shielded: How the Police Became Untouchable. In it, she describes how current law makes it extremely difficult, if not impossible, to hold police accountable when they violate the rights of those they are sworn to protect. She has a deep understanding of the law and the rules of civil litigation. She vividly demonstrates how the legal system all-too-often protects police officers despite appalling behavior and clear civil rights violations.