1. Reaves BA, Census of State and Local Law Enforcement Agencies, 2008. U.S. Department of Justice, Office of Justice Programs, Bureau of Justice Statistics
2. A behavioral-analytic model for assessing stress in police officers: phase I. Development of the Law Enforcement Officer Stress Survey (LEOSS);Van Hasselt;Int J Emerg Ment Health,2003
3. Parsons, J. Occupational health and safety issues of police officers in Canada, the United States and Europe: a review essay, 2004. www.mun.ca/safetynet/library/OHandS/OccupationalHS.pdf.
4. National Institute of Justice. On the job stress in policing—reducing it, preventing it. www.ncjrs.gov/pdffiles1/jr000242d.pdf. Published January 2000. Accessed January 2016.
5. A longitudinal examination of secondary traumatic stress among law enforcement;Craun;Vict Offender,2014