(1) To forbid and prevent the commission of offenses and give fair warning of conduct which is declared to be an offense;

(2) To adequately define the conduct and mental state which constitute an offense and to safeguard permitted conduct;

(3) To prescribe penalties which are proportionate to the seriousness of the offense and which permit recognition of differing rehabilitative needs of individual offenders while at the same time recognizing the need of the entire Reservation community to protect itself from offenders;

(4) To prevent arbitrary and oppressive treatment of persons accused or convicted of offenses and to promote the correction and rehabilitation of such persons; and

(5) To protect any Tribal member or other person residing on the Reservation whose health or welfare may be adversely affected or threatened due to abuse, neglect or exploitation by family,

household members, or other person in a legal or contractual position of providing physical, mental, or medical assistance and support to the affected person.

(6) The repeal, revision, amendment, or consolidation of any ordinance or part of an ordinance or section or part of a section of any ordinance amending any provision of this title shall not have the effect to release, extinguish, alter, modify, or change in whole or in part any penalty, forfeiture, or liability, either civil or criminal, which shall have been incurred under such ordinance, unless the repealing, revising, amending, or consolidating act so expressly provides; and such ordinance or part of an ordinance or section or part of a section of an ordinance so repealed, amended, or revised shall be treated and held as still remaining in force for the purpose of sustaining any and all proper actions, suits, proceedings, and prosecutions, criminal as well as civil, for the enforcement of such penalty, forfeiture, or liability, as well as for the purpose of sustaining any judgment, decree, or order which can or may be rendered, entered, or made in such actions, suits, proceedings, or prosecutions imposing, inflicting, or declaring such penalty, forfeiture, or liability.

(7) If any provision of this title or the application thereof to any person or circumstance is held invalid, such invalidity shall not affect other provisions or applications of the title that can be given effect without the invalid provision or application, and to this end the provisions of this title are declared to be severable.