dreamer_easy | Women tell the truth: more luck with Google (Reply)

UK figures from a 2005 Home Office Research Study, A gap or a chasm? Attrition in reported rape cases: "Nine per cent of reported cases were designated false... However, closer analysis of this category applying Home Office counting rules reduces this to three per cent. Even the higher figure is considerably lower than the extent of false reporting estimated by police officers interviewed in this study." [My emphasis] ETA: "... the Home Office guidance on 'no criming' and false complaints in particular was not always followed with cases having neither an admission by the complainant nor strong evidentiary grounds." (Kelly 2010)
A second paper I found, a report from the Villanova University School of Law, discusses the results of the belief that false reports are common, in the law and in police procedure, but points out: "In fact, there is no good empirical data on false rape complaints either historically or currently... As a scientific matter, the frequency of false rape complaints to police or other legal authorities remains unknown." [My emphasis] (Anderson, Michelle J. The Legacy of the Prompt Complaint Requirement, Corroboration Requirement, and Cautionary Instructions on Campus Sexual Assault. Villanova University School of Law, Public Law and Legal Theory Working Paper No. 2004-10, June 2004.)
A Canadian figure: in a study of rape reports to the Winnebago PD in 1976 and 1977, 27.3% of the cases were labelled "unfounded", but only 5.2% were false reports. (Johnson, Stuart, Rick Linden, and Candice Minch. Attrition in the Processing of Rape Cases. Canadian Journal of Criminology 29 1987.)