No witness shall refuse to testify as to any violation of this chapter on the ground that his testimony may incriminate him, but any witness so examined shall not be liable to prosecution for any violation of any provision of this chapter about which he may testify fully and without reserve.
Tex. Rev. Civ. Stat. art. 5205a
WITNESS MUST TESTIFY
Acts 1907, 30th Leg., p. 142, ch. 67.
Official source: Texas Constitution and Statutes. Reproduced from public-domain Texas statutes; confirm against the official source for the current text. Not legal advice.