1. Advancement Project and The Civil Rights Project (2000), Opportunities Suspended: The Devastating Consequences of Zero Tolerance and School Discipline Policies, Harvard Civil Rights Project, Boston, MA, available at: www.law.harvard.edu/civilrights/conferences/ zero/zt_report2.htm.
2. American Psychological Association (1999), Warning Signs, American Psychological Association, Washington, DC.
3. Atkinson, A. (1997), Virginia School Resource Officer Handbook, Virginia Department of Criminal Justice Services, Richmond, VA.
4. Cornell, D.G. (2001), Guidelines for Responding to Student Threats of Violence, University of Virginia, Charlottesville, VA.
5. Cornell, D.G., Sheras, P., Kaplan, S., Levy‐Elkon, A., McConville, D., McKnight, L., Posey, J., Branson, C. and Cole, J. (2003), “Student threat assessment: field‐test findings”, paper presented at the American Psychological Association Annual Convention, Toronto, August.