A paralegal is researching a federal-question case pending in the U.S. District Court for the Central District of California. Which authority is binding (mandatory) on that court?
Show answer & explanation
Answer: C
A published opinion of the U.S. Court of Appeals for the Fifth Circuit: Persuasive only. The Fifth Circuit's decisions bind the federal courts in its own circuit (Louisiana, Mississippi and Texas), not California.
A California Supreme Court opinion interpreting the federal statute: Persuasive only. On questions of federal law, a state supreme court's reading does not bind federal courts.
A published opinion of the U.S. Court of Appeals for the Ninth Circuit: Correct. California is in the Ninth Circuit, so that court's published decisions (and the U.S. Supreme Court's) bind district courts there.
An opinion from another U.S. district court judge in California: Persuasive only. One district judge's decision does not bind other district judges, even in the same district.
Mandatory authority comes from higher courts in the same jurisdiction; everything else is persuasive.