The Howard League for Penal Reform has criticised a Surrey prison where an inmate was kept in a "squalid" segregated cell for more than five years, saying the woman's treatment amounts to torture.
Chief Executive Frances Cook said the case "should shame ministers who tolerate the over-use of custody for women and consequent poor treatment." He went on to say:
"Although more activities had been organised for her and better multi-disciplinary support was available, she still had too little to occupy her. Her prolonged location on the segregation unit amounted to cruel, inhumane and degrading treatment - and we use these words advisedly."
It comes after HMP Bronzefield near Ashfield was criticised by inspectors at an unannounced visit earlier this year.
A Surrey prison is under fire for holding a female inmate in segregation in a "squalid" cell for more than five years. The discovery was made during an unannounced visit to HMP Bronzefield women's prison near Ashfield, Surrey, in April, said the chief inspector of prisons, Nick Hardwick.
In the inspection report he said: