1. Crime and the justice Table 4 Offences reported to the police, by type of offence. 1993-2009 2010 http://www.ssb.no/english/subjects/03/05/a_krim_tab_en/tab/tab-2010--04-15--04-en.html
2. http://www.amnesty.no/sites/default/files/1/Case%20closed%202008.pdf
3. Legal aspects of sexual violence-does forensic evidence make a difference?;Ingemann-Hansen;Forensic Sci Int.,2008
4. Grevholm E Nilsson L Carlstedt M National study of rapes reported to the police National Council for Crime Prevention (BRÅ) 2005