1. In any action, civil or criminal, when a defense is based upon any exemption provided for in this chapter, the burden of proving the existence of such exemption shall be upon the party raising such defense.
2. In any action, civil or criminal, a certificate signed and sealed by the commissioner, stating compliance or noncompliance with the provisions of this chapter, shall constitute prima facie evidence of such compliance or noncompliance with the provisions of this chapter and shall be admissible in any such action.