Tanger Outlets shooting: Law enforcement response to critical incidents explained

When an incident is perceived to be an active shooter or public threat, time is the most important element. First, officers have to identify and neutralize the threat. "Then we go back and apply triage to those who are injured. But the longer that we waited to go in, or if we try to help people as we move forward, it made it more complicated because more and more people were at risk," said Former Department of Public Safety (DPS) Director Frank Milstead.