Criminal justice and defendants' rights are crucial aspects of the American legal system. These principles ensure fair treatment for those accused of crimes, balancing public safety with individual liberties. Key concepts include due process, probable cause, and protections against self-incrimination and double jeopardy. The Constitution, particularly the Bill of Rights, forms the foundation for these protections. Major Supreme Court cases have shaped the interpretation of these rights, expanding protections in areas like the right to counsel and Miranda warnings. Modern challenges include racial disparities, overcriminalization, and the dominance of plea bargaining in resolving cases.