This principle refers to a constitutional doctrine through which selected provisions of the Bill of Rights are made applicable to the states through the Due Process Clause of the Fourteenth Amendment. This means that states cannot enact laws that infringe upon fundamental rights specifically protected by the Bill of Rights, even though the Bill of Rights initially only applied to the federal government. For instance, the Supreme Court has selectively incorporated the First Amendment’s guarantee of freedom of speech, meaning states cannot pass laws that unduly restrict an individual’s right to express their opinions.
The gradual application of the Bill of Rights to the states has been vital in safeguarding individual liberties across the nation. Without this process, state governments could potentially disregard protections against unreasonable searches and seizures, the right to counsel, and other fundamental rights. This doctrine ensures a baseline level of protection for citizens regardless of the state in which they reside. The historical context involves a series of Supreme Court cases where the Court evaluated whether a specific right was fundamental to the American scheme of justice, justifying its application to the states.