Sec. 1-a. MULTI-COUNTY DISTRICT; JOINT OFFICE. (a) The commissioners courts of two or more counties may enter into an agreement to create a medical examiners district and to jointly operate and maintain the office of medical examiner of the district. The district must include the entire area of all counties involved. The counties within the district must, when taken together, form a continuous area.

(b) There may be only one medical examiner in a medical examiners district, although he may employ, within the district, necessary staff personnel. When a county becomes a part of a medical examiners district, the effect is the same within the county as if the office of medical examiner had been established in that county alone. The district medical examiner has all the powers and duties within the district that a medical examiner who serves in a single county has within that county.

(c) The commissioners court of any county which has become a part of a medical examiners district may withdraw the county from the district, but twelve months' notice of withdrawal must be given to the commissioners courts of all other counties in the district.