A.R.S. § 13-2706: Limitation on defenses

A. It is no defense to a prosecution under this chapter that:

1. The statement was inadmissible under the rules of evidence; or

2. The oath or affirmation was taken or administered in an irregular manner; or

3. The defendant mistakenly believed the false statement to be immaterial.

B. The provisions of law which declare that evidence obtained upon examination of a person as a witness cannot be received against him in a criminal proceeding do not forbid giving such evidence against the person upon any proceedings founded upon a charge of perjury committed in such examination.