1. Ahrens, F. (2006, June 15). U.S. joins industry in piracy war: Nations pressed on copyrights. The Washington Post, A01.
2. Barclay, G., Tavares C., Kenny, S., Siddique, A. & Wilby, E. (2003). International Comparisons of Criminal Justice Statistics 2001. Home Office Statistics Bulletin, May 6, 2001.
3. The Future of Policing