TEC 37.0021(f)
Texas Education Code § 37.0021. Use of Confinement, Restraint, Seclusion and Time-Out.    

. . . 
(f)  For purposes of this subsection, "weapon" includes any weapon described under Section 37.007(a)(1).  This section does not prevent a student's locked, unattended confinement in an emergency situation while awaiting the arrival of law enforcement personnel if:     
    (1)  the student possesses a weapon;  and                                         
    (2)  the confinement is necessary to prevent the student from causing bodily harm to the student or another person.
. . . 

Last Amended:   82nd Leg., R.S., ch. 691, Sec. 2, eff. Sept. 1, 2011 
82nd Leg., R.S., ch. 691, Sec. 3, eff. Sept. 1, 2011
Entered: July 19, 2011