The basic philosophy of the Warren Court was a liberal philosophy of judicial activism and loose construction of the Constitution.
The Warren Court was instrumental in expanding the scope of rights that were to be protected from the government. It was the Warren Court that issued the Brown decision that banned segregation. It was the Warren Court that made the decisions in such cases as Gideon v. Wainwright and Miranda v. Arizona. These decisions and others greatly expanded the protections for the rights of the accused.
The Warren Court believed that judges should not be bound by the original intent of the Framers of the Constitution. It believed that the Constitution should be a “living document.” Because of these attitudes, it greatly expanded civil liberties and civil rights.