In Busby v. State, 40 P.3d 807 (Alaska App. 2002) the Court upheld a similar restriction on the presentation of a defense case. The issue in Busby was whether the defendant could defend against a charge of driving with a revoked license by claiming that he mistakenly believed, based on his own research, that his international driving permit gave him the right to drive in Alaska even though his Alaska driver's license was revoked. The Court held that this argument constituted an impermissible mistake-of-law defense.