What concept does the Fourteenth Amendment particularly emphasize in relation to the Bill of Rights?

The Fourteenth Amendment emphasizes the incorporation of the Bill of Rights to the state level through the doctrine of selective incorporation. This principle holds that many rights enumerated in the Bill of Rights, originally intended to constrain only the federal government, have been applied to the states via the Fourteenth Amendment's Due Process Clause. This transformation ensures that fundamental rights are protected from infringement by state governments as well, thereby expanding the scope of rights for individuals beyond just federal limitations.

This incorporation process has been critical in numerous landmark Supreme Court cases that extended various protections—such as free speech, protection against unjust searches, and the right to a public trial—to state actions, thereby ensuring a uniform standard of rights across the nation. Such historical context highlights the relevance of the Fourteenth Amendment in shaping civil liberties in the United States.