24 A document offered in a proceeding under this Act that purports to be certified or sworn by a judge or an officer of a court shall, unless the contrary is proved, be proof of the appointment, signature or authority of the judge or officer and, in the case of a document purporting to be sworn, of the appointment, signature or authority of the person before whom the document purports to be sworn.
AP Commentary: Unless there is evidence to the contrary, a sworn document tendered in evidence is considered to be authentic.