Art. 38.17. TWO WITNESSES REQUIRED.  In all cases where, by law, two witnesses, or one with corroborating circumstances, are required to authorize a conviction, if the requirement be not fulfilled, the court shall instruct the jury to render a verdict of acquittal, and they are bound by the instruction.
Acts 1965, 59th Leg., vol. 2, p. 317, ch. 722.