Texas Local Government Code - LOC GOV'T § 143.124. Polygraph Examinations

(a) A fire fighter employed by the municipality may not be required to submit to a polygraph examination as part of an internal investigation regarding the conduct of the fire fighter unless:

(b) Subsection (a)(1) does not apply if the complainant is physically or mentally incapable of being polygraphed.

(c) The fire department shall, on the written request of a fire fighter, provide to the fire fighter the complainant's polygraph examination results within 48 hours after the request.

(d) For the purposes of this section, a fire fighter passes a polygraph examination if, in the opinion of the polygraph examiner, no deception is indicated regarding matters critical to the subject matter under investigation.

(e) The results of a polygraph examination that relate to the complaint under investigation are not admissible in a proceeding before the commission or a hearing examiner.

(f) The fire department head may order a fire fighter to submit to a polygraph examination if the fire department head considers the circumstances to be extraordinary and the fire department head believes that the integrity of a fire fighter or the fire department is in question.