6See Cherry Henauh, Zero Tolerance in Schools [ J ] .Journal of Law and Education, Columbia: Vol. 30, Iss.3, 2001, P547-553.
7Russ Skiba, Reece Peterson, The dark side of zero tolerance: Can punishment lead to safe schools? [J] . Phi Delta Kappan, Bloomington: Vol.80, Iss. 5, 1999, P372-378.
8See Norman Dennis (ed.), Zero Tolerance: Policing a Free Society [C] . London: IEA Health and Welfare Unit, Enlarged and Revised Second Edition, 1998, P145,P85, P127.
9Martin Innes, "An Iron Fist in an Iron Glove?" the Zero Tolerance Policing Debate [J] . Howard Journal of Criminal Justice, Oxford: Vol. 38, Iss. 4.1999, P397-410 etc.
