For example .."Many people still believe that a ‘true’ sexual assault involves the use of physical violence and that there will be physical injuries that provide independent verification of the complainant’s story. Research, however, indicates that very few cases of sexual assault and/or rape have such physical evidence."
M Heenan and H McKelvie, The Crimes Rape Act 1991: An Evaluation Report (1997), 44 as cited in Victorian Law Reform Commission, Sexual Offences: Interim Report (2003), 309.