xii•ACRONYMS AND ABBREVIATIONS
NPO National Ports Office
NSA National Security Agency (U.S.)
OBE Officer of the Order of the British Empire
OGPU Obyedinennoye Gosudarstvennoye Politicheskoye
Upravleniye (Soviet intelligence service)
OIC Operational Intelligence Center
OSS Office of Strategic Services (U.S.)
PCO Passport Control Officer
PIDE Policia Internacional e de Defesa do Estado (Portuguese
intelligence service)
PoW Prisoner of War
PSIS Permanent Secretaries’ Committee on the Intelligence
Services
PWE Political Warfare Executive
QC Queen’s Counsel
RAF Royal Air Force
RCMP Royal Canadian Mounted Police
RNVR Royal Naval Volunteer Reserve
RSLO Regional Security Liaison Officer
RSS Radio Security Service
RUC Royal Ulster Constabulary
SCU Special Counterintelligence Unit
SD Sicherheitsdienst (Nazi security service)
SHAEF Supreme Headquarters Allied Expeditionary Force
SIM Servizio Informazioni Militari (Italian military
intelligence service)
SIME Security Intelligence Middle East
SIS Secret Intelligence Service
SIV Single Intelligence Vote
SLO Security Liaison Officer
SLU Special Liaison Unit
SO12 Metropolitan Police Special Branch
SOCA Serious and Organised Crime Agency
SOE Special Operations Executive
SOSSPP Sub-Committee on Security Service Priorities and
Performance
StB Statni Bezpecnost (Czech intelligence service)
STS Special Training School