Fiat - Definition - Law Dictionary Home Dictionary Definition fiat

Definition :

Fiat (let it be done), a decree; a short order or warrant of some judge or public officer for making out and allowing certain processes. The fiat of the Attorney-General was required for a writ of error in any criminal case (see ERROR). The fiat of a law officer is also required by certain Acts before proceedings can be commenced, see Castro v. Murray, (1875) LR 10 Ex 213. See PETITION OF RIGHT.

An order or decree esp. an arbitrary one; a court decree esp. one relating to a routine matter, Black's Law Dictionary, 7th Edn., p. 638.