Texas Code of Criminal Procedure - CRIM P Art. § 49A.103. Inquest Powers and Duties of Justice of the Peace Apply to Medical Examiner;  Conflict of Laws

(a) When the commissioners court of a county establishes an office of medical examiner, all powers and duties of justices of the peace in that county relating to a death investigation or an inquest transfer to the office of medical examiner.

(b) A subsequent general law relating to a duty of a justice of the peace in a death investigation or inquest applies to the medical examiner in that county only to the extent that the law is not inconsistent with this subchapter, Article 49A.152, or Article 49A.251, and those provisions prevail over a law or a part of law that otherwise conflicts with those provisions.