Following the announcement that MI6 has just appointed Blaise Metreweli as its first-ever female chief, Charlotte Philby, granddaughter of one of Britain’s most notorious double agents and author of ‘The Secret Life of Women Spies’, explains why women make brilliant spies and should be recognised for their service

Blaise Metreweli (pictured) has been appointed as the next head of the Secret Intelligence Service, replacing Sir Richard Moore in the autumn.

Blaise Metreweli joined the Secret Intelligence Service (MI6) in 1999 and will become its 18th chief.

Blaise Metreweli is succeeding Sir Richard Moore, who leaves this autumn after four years in charge