Michigan Michigan's statute is ambiguous on its face, but judicial authority suggests that the consent of any one party is sufficient. Montana Montana is an all-party consent state. New Hampshire New Hampshire requires the consent of all parties. N.H. Rev. Stat. N.Y. Penal Law 250.00.
Violation carries a maximum criminal penalty of four years' imprisonment.
There is no civil cause of action. Oregon Oregon requires the consent of all parties. Pennsylvania Pennsylvania requires the consent of all parties. 18 Pa. Cons. Felony penalties may be imposed for violation of the Pennsylvania statute.