There you go Casdon. The step son can claim whatever he chooses to claim in the media. His comments have certainly has stirred up huge speculation. If step son is right that means every body, including the Police, care facility, CQC, LA and every care staff member currently involved in Ranulph's care, including GP, have failed in their statutory safeguarding duties.
LPoA grants his wife legal decision making authority over health and financial affairs. However the wife with LPoA has no lead right to arbitrarily or unreasonably ban family or friend visitors unless it is proven to be in Ranulph's best interests or necessary for safeguarding.
Registered care facilities, registered health and social are practitioners and LAs are aware of this and must surely, be aware of media focus on Ranulph and statements made by step son et al? They must consider Ranulph's best interests and escalate statutory safeguarding process if they have any safeguarding concerns including about the wife- just as the care home in Wales did (though in that circumstance it was the home found to have failed to have the right protocols in place and the wife was right to give instructions, ie of the standard of daily care she wanted for her husband).