1. Baggett, L. (2018). Two behaviors linked to high school dropout rates. Accessed 3/8/2019 from, http://www.phys.org/news/2018-03-behaviors-linked-high-school-dropout.htmi .
2. Bradford, E., & Wilson, M. (2013). When terrorists target schools: An exploratory analysis of attacks on educational institutions. Journal of Police and Criminal Psychology, 28, 127–138.
3. Canady, M., James, B., & Nease, J. (2012). To protect and educate: The school resource officer and the prevention of violence in schools. Washington, DC: National Association of School Resource Officers.
4. Cech, P. (2016). Police psychology/active school shooter drills: A reflection; A request in inside police psychology. pp. 1–3. Accessed 10/6/2016 from http://www.policepsychologyblog.com/?p=4269 .
5. Choi, K., Cronin, S., & Correia, H. (2016). The assessment of capable guardianship measures against bullying victimization in the school environment. Police Practice and Research, 17(2), 149–159.