British Service Attaches in Moscow. Report by the Joint Intelligence Committee

7. We consider that any restrictions imposed on Russian Service Attaches would be very difficult to enforce, since we have not available the means to keep the Russians continually under observation, and we should have to rely on chance detection of failure to observe the regulations before any appropriate action could be taken. Moreover, any such measures might very well lead to reprisals in Satellite countries, where a greater measure of freedom is enjoyed by our Attaches; this would result in a reduction of information from these countries which we could ill-afford to lose.