section 491.2(3)


491.2(3) For the purposes of subsection (2), a certificate of a person stating that (a) the person took the photograph under the authority of subsection (1), (b) the person is a peace officer or took the photograph under the direction of a peace officer, and (c) the photograph is a true photograph shall be admissible in evidence and, in the absence of evidence to the contrary, is evidence of the statements contained in the certificate without proof of the signature of the person appearing to have signed the certificate.