From 1926, at an old age, Isa was joined by a British consultant, Charles Belgrave, who helped him implement administrative reforms aimed at promoting social progress as laws for the regulation of pearl fishing, traditionally one of the main parts of the local economy.
From 1926, at an advanced age, Isa was accompanied by a British consultant, Charles Belgrave, who assisted him in implementing administrative reforms to advance social progress through laws governing pearl fishing, which had traditionally been a significant part of the local economy.