Sec. 21.004.  CRIMINAL OFFENSE OF INTERFERENCE;  PENALTY.  (a)  A person commits an offense if the person wilfully resists, prevents, impedes, or interferes with the performance of a duty under or the exercise of a power provided by this chapter.
(b)  An offense under this section is a Class B misdemeanor.
Acts 1993, 73rd Leg., ch. 269, Sec. 1, eff. Sept. 1, 1993.