Safety expert: Students told not to use phones

Posted at 9:47 AM, Feb 12, 2016
and last updated 2016-02-12 13:12:32-05

School safety expert Steven Adelman says students are told not to use their phones during lockdown situations, which is why some parents haven’t heard from their children after the shooting at Independence High School in Glendale.

Watch the video for Adelman’s full explanation of lockdown procedure