Submitted on: 14 January 1998.
Revised on: 25 April 1998.
Accepted on: 13 May 1998.
___________________Journal of Forensic Practice---EMERALD GROUP PUBLISHING LTD
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Submitted on: 04 May 2002.
Revised on: 30 July 2002.
Accepted on: 16 August 2002.
___________________Journal of Forensic Practice---EMERALD GROUP PUBLISHING LTD
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Submitted on: 29 December 2010.
Revised on: 20 April 2011.
Accepted on: 18 June 2011.
___________________Journal of Forensic Practice---EMERALD GROUP PUBLISHING LTD
Submitted on: 27 May 1999.
Revised on: 07 July 1999.
Accepted on: 25 August 1999.
___________________Journal of Forensic Practice---EMERALD GROUP PUBLISHING LTD
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