Sec. 87.013. GENERAL GROUNDS FOR REMOVAL. (a) An officer may be removed for:

(1) incompetency;

(2) official misconduct; or

(3) intoxication on or off duty caused by drinking an alcoholic beverage.

(b) Intoxication is not a ground for removal if it appears at the trial that the intoxication was caused by drinking an alcoholic beverage on the direction and prescription of a licensed physician practicing in this state.

Acts 1987, 70th Leg., ch. 149, Sec. 1, eff. Sept. 1, 1987.