(a) Bigamy is any of the following:
(1) Marriage within this state by any person who has another spouse living at the time of such marriage;
(2) marriage within this state by an unmarried person to a person known to such unmarried person to be the spouse of some other person; or
(3) cohabitation within this state after marriage in another state or country under circumstances described in subsection (a)(1) or (a)(2).
(b) Bigamy is a severity level 10, nonperson felony.
(c) It shall be a defense to a charge of bigamy that the accused reasonably believed the prior marriage had been dissolved by death, divorce or annulment.