The family of a British prisoner in Dubai has urged foreign investors such as the lender JPMorgan and fund manager BlackRock to divest their holdings in Dubai Islamic Bank, which it blames for the extended detention of its relative.
Ryan Cornelius, 68, has been imprisoned in the Gulf’s commercial capital for 14 years after being arrested in 2008 along with three other people, including his former business partner Charles Ridley.
All four were convicted of defrauding DIB, which is…