Professor Yaffle
Butterbeans and Breadcrumbs
Another source for the 80% figure - but this time it seems to be specific to one particular specialist prosecutor:
http://www.guardian.co.uk/uk/2005/jul/31/ukcrime.immigrationpolicy
I think the title of the article gives a bit of perspective: "50,000 rapes each year but only 600 rapists sent to jail".
In the United States, prosecutions for rape are far more successful than in the UK, says Bindel, who has worked with one of the US's special rape prosecutors. 'This prosecutor has achieved an 80 per cent conviction rate, simply because she's had proper training,' says Bindel. 'She knows everything: the difference between the physical trauma received by an 11-year-old rape victim and a 14-year-old one, how to interpret any psychiatric evidence, where a victim's statement is weak and likely to be attacked by a defence lawyer.'
http://www.guardian.co.uk/uk/2005/jul/31/ukcrime.immigrationpolicy
I think the title of the article gives a bit of perspective: "50,000 rapes each year but only 600 rapists sent to jail".