Ms. Barnes spoke about which youth violence prevention strategies have shown results. These include in-school mental health services and behavioral interventions, positive school climate, positive behavioral interventions and supports, and threat assessment processes. In terms of the impact of physical security measures and school resource officers, Ms. Manoatl indicated that research does not exist regarding their effectiveness. Ms. Barnes discussed how Colorado has invested in school safety so far and what are some best practices in the field regarding policy. She provided a list of recommendations for improving the safety of students overall, but especially in schools.