Detectives say they were called to the scene in north London just after midnight on Monday.

Muhammad Hussain and "right-hand man" Riaz Wadood used the firms as a front to import drugs.

The exams watchdog said it supported the decision to address concerns raised by teachers.

Curtis Robb, 54, is accused of repeated or continuous controlling and coercive behaviour.

Malcolm Phillips, 93, is given an absolute discharge, while Linda Brunning is jailed for 25 years.

Sean McGovern will serve two sentences of directing the activities of a criminal organisation.