The issue came up again in a related story about anonymity for those acused of rape.
The statistic Harriet Harman bandied about was a conviction rate of 6.3%, but that a percentage of total reported cases, not of cases prosecuted, where actually the conviction rate is 58%.
So the real issue seems to be the prosecution rate, not the conviction rate as that seems to be more or less in line with other crimes. To put some numbers to it, of 100 reported cases of rape, only 11 are taken to court and 6 of those result in a conviction.
So the question is, what is the percentage of reported crimes that result in a conviction?