(a) The reliability of an instrument used to take or analyze a specimen of a person‘s breath to determine alcohol concentration and the validity of the results of the analysis may be attested to in a proceeding under this subchapter by affidavit from the certified breath test technical supervisor responsible for maintaining and directing the operation of breath test instruments in compliance with department rule.
(b) An affidavit submitted under Subsection (a) must contain statements on:
(1) the reliability of the instrument and the analytical results; and
(2) compliance with state law in the administration of the program.

Terms Used In Texas Transportation Code 524.038

  • Affidavit: means a statement in writing of a fact or facts signed by the party making it, sworn to before an officer authorized to administer oaths, and officially certified to by the officer under his seal of office. See Texas Government Code 312.011
  • Affidavit: A written statement of facts confirmed by the oath of the party making it, before a notary or officer having authority to administer oaths.
  • Person: includes corporation, organization, government or governmental subdivision or agency, business trust, estate, trust, partnership, association, and any other legal entity. See Texas Government Code 311.005
  • Rule: includes regulation. See Texas Government Code 311.005

(c) An affidavit of an expert witness contesting the reliability of the instrument or the results is admissible.
(d) An affidavit from a person whose presence is timely requested under this section is inadmissible if the person fails to appear at a hearing without a showing of good cause. Otherwise, an affidavit under this section may be submitted in lieu of an appearance at the hearing by the breath test operator, breath test technical supervisor, or expert witness.

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