In any civil proceeding alleging a violation of this chapter, the burden of proving an exemption specified in Section 8-19A-4 or that the person or entity is not otherwise subject to this chapter is upon the person or entity claiming the exemption. In any criminal proceeding alleging a violation of this chapter, the burden of producing evidence to support a defense based upon an exemption specified in Section 8-19A-4 or that the person or entity is not subject to this chapter is upon the person or entity claiming the defense.
Ala. Code § 8-19A-22 (1975)