Tex. Penal Code § 36.01
In this chapter:
(1) "Custody" means:
Acts 1973, 63rd Leg., p. 883, ch. 399, Sec. 1, eff. Jan. 1, 1974.
Amended by Acts 1975, 64th Leg., p. 915, ch. 342, Sec. 11, eff. Sept. 1, 1975;
Acts 1983, 68th Leg., p. 3237, ch. 558, Sec. 1, eff. Sept. 1, 1983;
Acts 1989, 71st Leg., ch. 67, Sec. 2, eff. Sept. 1, 1989;
Acts 1991, 72nd Leg., ch. 304, Sec. 4.01, eff. Jan. 1, 1992;
Acts 1991, 72nd Leg., ch. 565, Sec. 3, eff. Sept. 1, 1991;
Acts 1993, 73rd Leg., ch. 900, Sec. 1.01, eff. Sept. 1, 1994.