"The historic appointment of Blaise Metreweli comes at a time when the work of our intelligence services has never been more vital," Starmer said on Sunday. "MI6 plays a vital role - with MI5 and GCHQ [Government Communications Headquarters] - in keeping the British people safe and promoting UK interests overseas. "With a wealth of experience from across our national security community, Blaise is the ideal candidate to lead MI6 into the future," said her boss David Lammy. "Every day, our intelligence services work behind the scenes to protect our national security and compete with our adversaries. "Blaise will be an excellent chief, who will embody the values of the Service and act as a fine role model to its staff.