Section 111: Proof of seal and signature.

The fact that an affidavit purports to have been sworn in the manner prescribed in the preceding sections shall be prima facie evidence of-
a the seal or signature, as the case may be, of any such court, judge, magistrate or other officer or person mentioned in, or appended or subscribed to, any such affidavit; and
b the authority of such court, judge, magistrate or other officer or person to administer oaths.