“Human factors” played a large role in the failure to carry out emergency policies at Robb Elementary School, according to experts in criminal justice and school safety who analyzed a report on the school shooting in Uvalde, Texas.

What to know about the report: A Texas House committee on Sunday released the preliminary report of almost 80 pages based on interviews with more than 30 witnesses, as well as audio and video recordings from the scene. It is the most robust analysis published about the elementary school shooting May 24.

Takeaways: Experts told USA TODAY that although the school and the district’s school police department  had policies and training on how to respond to an active-shooter situation, the fail-safes did not hold up in practice because of human error.

The reaction: Some loved ones of victims and community members in Uvalde reacted with anger and disappointment, especially to the details of how officers waited to enter the school’s classroom. 

“It’s disgusting. Disgusting,” said Michael Brown, whose 9-year-old son was in the school’s cafeteria on the day of the shooting and survived. “They’re cowards.”

Safety issue in locking classroom doors

What the report found: Robb Elementary School had a “regrettable culture of noncompliance” among school personnel in propping open doors and circumventing locks. No one had locked any of the three exterior doors to the west building of the school, a direct violation of school policy, the report says.

What the school did right: Uvalde Consolidated Independent School District is one of few in Texas to have submitted a viable policy for responding to an active-shooter emergency, according to the report. State legislation enacted in 2019 directs schools to create a plan for responding to an active-shooter scenario.

What experts say: Though schools prepare for active shooters with drills and equipment, “human factors” such as a propped door can upend those protections, said Kenneth Trump, president of National School Safety and Security Services, a consulting firm. Those errors aren’t unique to this school, he added.