http://www.torturecare.org.uk/publications/reportAsylum.htm
"This report presents the findings of research conducted by the Medical Foundation for the Care of Victims of Torture (the 'Medical Foundation') on the occurrence of harm by State or private detention custody officers of individuals whose claims for asylum in the UK have been unsuccessful and who are detained pending their removal, and deals in particular with the use of force occurring during the attempt to remove individuals from the United Kingdom. "
PDF - http://www.torturecare.org.uk/publications/excforce.pdf