Operations

Question 1

‘ARCOS’ raid

Date: 1927

Before 1945 but context

Answer 1

Soviet Trade Delegation office at 49 Moorgate raided by police on MI5’s orders and vast amount of espionage activity uncovered. P. 43

Question 2

Operation: PARTY PIECE

Date:

Answer 2

55,000 secret membership files from the CPGB acquired by an A2 team.

This contained files of covert members of the CPGB that had been recruited for espionage, situated in the Labour Party, civil service and trade union movement.

Result - ‘… the CPGB was never again in a position to seriously threaten safety of the realm.’

P.69-70

Question 3

A2 Operation: CHOIR

Date:

Example of a failed operation

Answer 3

Bugging of Russian consulate on Bayswater road.

MI5 agents disguised as decorators fit a ‘probe’ microphone.

Microphone cavity filled in by Russian sweeper team.

Question 4

Operation: RAFTER

Date:

Answer 4

Enormous implications.

Proof receiver inside Russian Embassy was tuned in to the watcher frequencies.

Rafter allowed detection of broadcasts from Moscow to illegal Russian agents were being monitored inside the embassy.

Proved watcher communications were major source of int. for Russians.