59. In every proceeding for an infringement of this Act or of the regulations:(a) an inspector’s certificate or report of analysis in which is recorded the result of an examination respecting the composition of a dairy product or a substitute, shall constitute prima facie proof of its contents if the inspector attests in the certificate or report of analysis that he personally observed the facts stated therein;
(b) the minutes or report of the findings, of a taking of specimens, of seizure or of confiscation drawn up and certified by an inspector who has inspected, sampled, seized or confiscated a dairy product or substitute, shall constitute prima facie proof of the observations recorded therein by such inspector if the inspector certifies that he personally observed the facts stated therein;
(c) any document presented as an inspector’s certificate or report of analysis or the minutes or report of an inspector shall be admissible in evidence, without its being necessary to establish the signature of the person by whom the document is presented as having been signed or to establish such person’s official capacity.