Art. 20.15. WHEN WITNESS REFUSES TO TESTIFY    


When a witness, brought in any manner before a grand jury, refuses to testify, such fact shall be made known to the attorney representing the State or to the court; and the court may compel the witness to answer the question, if it appear to be a proper one, by imposing a fine not exceeding five hundred dollars, and by committing the party to jail until he is willing to testify.

Acts 1965, 59th Leg., vol. 2, p. 317, ch. 722.