No conduct constitutes an offense unless so declared by this title (Code of Tribal Offenses), by any Tribal ordinance, or by specific Washington law incorporated by reference into this title (Code of Tribal Offenses). The elements of any offense as contained in this code are the sole elements required for conviction in Tribal Court. Extraneous elements required by other jurisdictions shall not be considered by the Judge or jury in reaching a verdict of guilt or innocence. However, this provision does not affect the power of the Tribal Court to punish for contempt or to employ any sanction authorized by law for the enforcement of an order, civil judgment, or decree.