Section 12.1-23-08.4 - Duplication of keys1. Except as provided in subsection 2, no person shall duplicate or make a key from another key marked with the words "Do Not Duplicate", "Do Not Copy", or words of similar intent.2. It shall be an affirmative defense to prosecution under subsection 1 that: a. The person made or duplicated the key for his employer, solely for use within the employer's place of business.b. The person for whom the key was made or duplicated owns the lock which the key fits.3. Any person who violates any provision of this section is guilty of a class B misdemeanor.