You might be interested in this free open access article in the Journal of Forensic Psychiatry and Psychology about the distribution of women in secure services in England and Wales. It is an important piece of work because the Department of Health did not have the information and bed distribution is likely to influence how far from home women are placed. Not to mention a SFF member is one of the authors!

http://www.tandfonline.com/doi/abs/10.1080/14789949.2012.717300