Harb v Prince Fahd Bin Abdul Aziz [2014] EWHC 1807 (Ch); [2014] WLR (D) 248
‘A former head of state, regardless of how he ceased to hold office, only enjoyed immunity from suit in respect of official acts during his tenure in post. Therefore, where a sovereign ceased to be head of state on his death, the immunity enjoyed by his estate did not extend to matters of a private nature.’
WLR Daily, 9th June 2014
Source: www.iclr.co.uk