From office; by virtue or the office; without any other warrant orappointment than that resulting from the holding of a particular oflice. Powers may beexercised by an officer which are not specifically conferred upon him, but are necessarilyimplied in his office; these are ex o/Jicio. Thus, a judge has ex officio the powersof a conservator of the peace. Courts are bound to notice public statutes judicially andex officio.

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