Dorset CC v EH  EWHC 784 (Fam)
The Official Solicitor's view and independent expert's opinion was that EH, an elderly lady with dementia, should be assisted to continue to live at home; notwithstanding this, the judge agreed with the local authority that it was in EH's best interests to be deprived of her liberty in residential accommodation for her own safety.
Thanks to Victoria Butler-Cole (39 Essex Chambers) for providing the judgment.
Possible Bailii link (not there when checked last night, but might have appeared since)
Essex St Public Law Newsletter, August 2009 - Brief summary of case
Michael Dunn 'Autonomy and welfare as amici curiae' (2010) 18(1) Med L Rev 86