MI5
commonly known as MI5 utawa Basa Inggris: Security Service (Intèlijen Militèr sèksi 5), iku badan kaamanan lan kontra intèlijen Inggris  minangka péranganing mesin intèlijen bebarengan karo Secret Intelligence Service (SIS utawa MI6), Government Communications Headquarters (GCHQ) lan Defence Intelligence Staff (DIS). Kabèh mau ana ing sangisoré arahan Joint Intelligence Committee (JIC).

Rujukan

Wacan 
  Published in the USA on November 2009 by Knopf as Defend the Realm. The Authorised History of MI5. ISBN 978-0-307-26363-6.

Pranala njaba 
 Security Service
 Records of the Security Service on The National Archives' website.
 UK Intelligence Community On Line

Badan kontra intèlijen Inggris
Badan intèlijen Inggris