 This unique group was recruited and led by Commanding Officer Captain Morton Grainger Bisset a highly specialised printer, to provide a multitude of forged documents to enable agents with false identities to operate in occupied countries without being captured..The passports, identity cards, wok permits, ration books, driving licences needed to be perfect to fool the Nazi SS and police at border and random check points.Any small discrepancy could lead to instant arrest, interrogation, torture and ultimately a firing squad.