Texas Government Code - GOV'T § 26.223. Jefferson County

(a) If the county judge is licensed to practice law in this state, the County Court of Jefferson County has jurisdiction concurrent with the County Court at Law of Jefferson County over all causes and proceedings, civil and criminal, juvenile and probate, original and appellate, over which by the constitution and general laws of this state county courts have jurisdiction.

(a-1) If the county judge is not licensed to practice law in this state, the County Court of Jefferson County has concurrent jurisdiction with the county courts at law in Jefferson County only in probate proceedings, administrations of estates, guardianship proceedings, mental illness proceedings, and juvenile matters as provided by Section 26.042(b).

(b) The terms of the county court continue until the court has disposed of its business. The commissioners court may change the court terms under Section 26.002.