The FBB closed all three Security Zone checkpoints, but by then Stauffenberg's car had been let through two of them as he left the area.[79] Contrary to the imposed security doctrine in place, Stauffenberg and his adjutant were able to pass through the closed Security Zone 3 checkpoint and proceed to the airport for the flight to Berlin. They succeeded in getting away before clarity of the events could be established by the military and security personnel at the Wolf's Lair complex.[80]