Relator

Relator, a rehearser, teller, or informer. It was the name given to a plaintiff in an information in Chancery, where the rights of the Crown were not immediately concerned, who was responsible for costs; he must have given the solicitor a written authority to file the information, 15 & 16 Vict. c. 86, s. 11. For the former information in Chancery an action is now substituted (see R.S.C. Ord. 1., r. 1), but the term 'relator' is still in use as meaning the person responsible for costs at whose suggestion an action is commenced by the Attorney-General.

Also, a person who brings an information in the nature of a quo warranto, or a criminal information.

Means a party who has standing and on whose behalf a writ is petitioned for by the state as plaintiff, State ex rel. Tate v. Turner, 789 SW 2d 240 (1990).