The will of the sovereign power is expressed: (1) By the Constitution of the United States; (2) By treaties made under the authority of the United States; (3) By statutes enacted by the Congress of the United States; (4) By the Constitution of this state; (5) By statutes enacted by the Legislature; (6) By statutes enacted by vote of the voters; (7) By the ordinances of authorized subordinate bodies; (8) Rules of practice and procedure prescribed by courts or adopted by departments, commissions, boards, officers of the state, or its subdivisions pursuant to authority so to do. Source: SDC 1939, § 65.0102; SL 1985, ch 15 , § 5.