Mich. Comp. Laws § 600.605 : — REVISED JUDICATURE ACT OF 1961CHAPTER 6. JURISDICTION OF THE CIRCUIT COURTS — Circuit court; original jurisdiction TEXT PDF Circuit courts have original jurisdiction to hear and determine all civil claims and remedies, except where exclusive jurisdiction is given in the constitution or by statute to some other court or where the circuit courts are denied jurisdiction by the constitution or statutes of this state. MCL 600.605 1961, Act 236, Eff. 1/1/1963 .