any untried indictment, information, or complaint within 180 days. However, the prisoner needs to enter a request for final disposition to begin the clock. U.S. Marshals are given the power to issue writs of detainers in 28 U.S.C. 566(c), which is how the federal government interacts with the states to retrieve those being held in state prisons.

In Carchman v. Nash, the Supreme Court held that a probation revocation (or