THIS DOCUMENT IS THE PROPERTY OF HIS BRITANNIC MAJESTY'S GOVERNMENT). COPY NO. 36 Reference J.I.C.(48) 25 (0) (Final Revise) 13th April, 1951 CHIEFS OF STAFF COMMITTEE JOINT INTELLIGENCE COMMITTEE INSTRUCTIONS FOR HANDLING CERTAIN INFORMATION Note by the Secretary To correct certain misapprehensions regarding the GUARD procedure, the Joint Intelligence Committee have agreed+ to the following amplification of the above quoted instructions. Marking of Envelopes. 2. The word GUARD must never appear on any envelopes.