Which amendment is associated with due process on a federal level?

The Fifth Amendment is associated with due process at the federal level because it explicitly states that no person shall "be deprived of life, liberty, or property, without due process of law." This provision establishes that the federal government must follow fair procedures when it affects an individual's rights. It underscores the principle of fair treatment in legal proceedings, ensuring that individuals are afforded their legal rights and protections before being deprived of their fundamental interests.

While the Fourteenth Amendment also addresses due process, it specifically applies to the states. Its due process clause extends protections against state infringement of individual rights, thereby incorporating the standards set by the Fifth Amendment. The primary focus here is the distinction of the Fifth Amendment being the direct reference for due process in matters involving the federal government.

The other amendments listed do not specifically mention due process in their text or scope. For example, the First Amendment primarily concerns freedoms of speech, religion, and assembly, while the Ninth Amendment recognizes rights not enumerated in the Constitution. Within this context, the Fifth Amendment's relationship to due process at the federal level is clear and pivotal.