Personnel selected for this duty should be briefed prior to the operation by the Departments or Services for whom they will be required to obtain information. If possible selected personnel should be made available to the Department or Service concerned for brief specialised training. (b) The above proposal should be implemented, as an experiment, in connection with operation "RUTTER". (Signed) V. CAVENDISH-BENTINCK " J.H. GODFREY " C.E.H. MEDHURST " J.M. KIRKMAN (for D.M.I.) " C.G. VICKERS Great George Street, S.W.1.