 The Court of Exchequer's main task was collecting royal revenues and taxes, partially through ensuring that debts to The Crown were paid.It soon developed the ability to hear "common" cases, usually heard by the Court of Common Pleas, and did so through the writ of "quominus".The origins of the writ are unknown, although some academics link it to a process through which a claimant could bring a claim jointly with the King or in part payment towards his debt to the King, in cases where the King had an interest.