80% of women don't report rape of sexual assault, survey claims In response, Mumsnet is launching a campaign called "We Believe You" in order to support victims, and also to dispel the myths that women invite rape by dressing provocatively and sexual assaults cannot take place within relationships. Justine Roberts, co-founder of Mumsnet, said: "The results of our survey are really shocking. We simply shouldn't accept that we live in a country where one in ten women are raped and over one-third sexually assaulted. Things are made worse by the feeling among many women that they can't talk about these crimes for fear of being treated unsympathetically, denying them access to practical and emotional support when they need it most. Holly Dustin, Director of the End Violence Against Women Coalition, added: "The survey findings show clearly that sexual violence is far more widespread in women's lives than commonly thought, and that prejudicial reporting in the media and negative public attitudes have a harmful impact. We want to see ongoing public campaigns to tackle attitudes to sexual violence, and work with young people in schools to prevent harmful behaviours developing in the first place. It is also critical that all women and girls have access to Rape Crisis centres or other specialist support services in their community. The report provides the latest evidence of a lack of public confidence in the way rape is handled by the authorities. Last year Ken Clarke, the Justice Secretary, angered many women when he claimed there was a distinction between "serious, proper rapes" and others. At the time he was defending a plan - now abandoned - to halve rapists' prison sentences if they pleaded guilty. Recently a report by HM Inspectorates of Constabulary and the Crown Prosecution Service suggested that more than one in 10 rape allegations is being dismissed by police in order to secure a higher conviction rate. It is widely believed that juries will not convict a man of rape if his alleged victim was drunk or was not subjected to violence, and so some allegations are not being investigated thoroughly or brought to trial. But a Government review by Baroness Stern also claimed that some women are put off reporting attacks to the police because of a "misleading" figures used by campaigners that only 6 per cent of rapes lead to convictions.