11(1)If the Minister has made a written demand to a person referred to in section 10 for any expenses incurred by the Minister in relation to the prevention or decrease of the effects of or the elimination of a health hazard and those expenses remain unrecovered in whole or in part, the Minister may sign a certificate setting out the amount of the unrecovered expenses.

11(2)In any action under section 10, a certificate purporting to be signed by the Minister setting out the amount of the unrecovered expenses described in subsection (1) is, without proof of the appointment, authority or signature of the person purporting to have signed the certificate, admissible in evidence and is, in the absence of evidence to the contrary, proof