Hawaii Revised Statutes Division 5. Crimes and Criminal Proceedings § 705-501

(1) A person who engages in conduct intended to aid another to commit a crime is guilty of an attempt to commit the crime, although the crime is not committed or attempted by the other person, provided his conduct would establish his complicity under sections 702-222 through 702-226 if the crime were committed or attempted by the other person.

(2) It is not a defense to a prosecution under this section that under the circumstances it was impossible for the defendant to aid the other person in the commission of the offense, provided he could have done so had the circumstances been as he believed them to be.