Tex. Government Code § 411.375: ACTIVATION.

(a) On the request of a local law enforcement agency or as the department determines appropriate to assist a local law enforcement agency regarding an active shooter, the department shall activate the alert system and notify appropriate participants in the alert system as established by rule if the local law enforcement agency or department:

(1) believes an active shooter is in the agency's jurisdiction;

(2) determines an active shooter alert would assist individuals near the active shooter's location;

(3) verifies the active shooter situation through a preliminary investigation; and

(4) provides the active shooter's last known location and any identifiable information for the active shooter.

(b) The department may modify the criteria described by Subsection (a) as necessary for the proper implementation of the alert system.

Added by Acts 2021, 87th Leg., R.S., Ch. 125 (H.B. 103), Sec. 2, eff. September 1, 2021.