1. American Society of Crime Laboratory Directors, 180-Day Study Report: Status and Needs of United States Crime Laboratories, 2004, pp. iii–iv. Retrieved July 16, 2006. from http://www.ncjrs.gov/pdffiles1/nij/grants/213422.pdf.
2. Commission Recommendation of 1 March 2005 concerning a coordinated programme for the official control of foodstuffs for 2005. Official Journal of the European Communities, L 059, 05/03/2005, pp. 27–39.
3. Common action in the field of police cooperation, Title VI, Article 30 of the Treaty of Amsterdam.
4. Communication from the Commission to the Council and the European Parliament on a European Union Action Plan to Combat Drugs (2000–2004), Brussels, COM(1999) 239 Final, 26.05.1999, p. 13.
5. Communication from the Commission to the European Parliament and the Council, Enhancing Police and Customs Co-Operation in the European Union, Brussels, COM(2004) 376 Final, 18 May 2004.