Bassa rules and regulations
Re DH still holding onto Branch Secretary position - given the changes that the ruling elite appear to have made to the normal union rules over the years - viz : only Bassa allowed to control/agree a dispute, despite Unite; very stringent qualifications to be eligible to stand for election to committee; etc. - it would seem quite possible that due to a similar weasel clause, the BS cannot be changed until any outstanding disputes are concluded.
Surely someone out there has a copy of the Bassa rule book in all its glory.