Aduplicate is admissible to the same extent as an original under this rule or as may otherwise be provided by statute unless:

1. 1. A question is raised as to the authenticity of the original ; or
2. 2. In the circumstances it would be unfair to admit the duplicate in lieu of the original.

Laws 1978, c. 285, § 1003, eff. October 1, 1978.