A more thorough explanation:

The All Writs Act is a law that allows the U.S. Supreme Court and other courts created by Congress to issue writs to help them carry out their duties and follow legal principles. This law is found in section 1651(a) of Title 28 of the United States Code.

For example, if a court needs to enforce a judgment or order, it can issue a writ of execution to seize property or assets to satisfy the debt. Or, if a court needs to compel a witness to testify, it can issue a writ of subpoena to require the witness to appear in court.

The All Writs Act is a powerful tool that courts can use to ensure that their orders are carried out and their jurisdiction is respected. However, it is also subject to limitations and must be used in accordance with legal principles and procedures.