N.D. Cent. Code § 9-03-05: Duress defined

Duress consists in:

1.Unlawful confinement of the person of a party to a contract, of the husband or wife of such party, or of an ancestor, descendant, or adopted child of such party, husband, or wife;

2.Unlawful detention of the property of any such person; or

3.Confinement of such person, lawful in form, but fraudulently obtained, or fraudulently made unjustly harassing or oppressive.