Government Code §26.023

(a) The county judge may appoint a retired judge or a constitutional county judge from another county as a visiting judge when the county judge is absent from the county or absent because of physical incapacity. (b) The visiting judge shall sit in all matters that are docketed on any of the county court's dockets and has the powers of the county judge in relation to the matter involved. (c) Without the consent of the commissioners court, visiting judges appointed under this section may not sit for more than 15 working days during a calendar year. (d) The order appointing the visiting judge shall be noted in the docket of the court.