II 118 matters pertaining to the test operations. Other security nlanning activities included (1) the development of a clearance program for all personnel going to the proving ground and having access to classified information; (2) arrangements for the security of certain classified HARDTACK aircraft staging through Hickam Air Farce Base, Hawaii, enroute to Eniwetoks; (3) designation of entry requirements for personnel moving to the proving grounds (4) setting up of controls for use and maintenance of photographic equipment in the proving grounds (5) formulation and development of a program for assignment of resident agents :of the Office of Special Investigation to the proving ground; and (6) @s— tablishment of a liaison system with other security agenctes of Joint Task Force SEVEN and the Atomic Energy Commission. Physical controls were established and administered at Enivetok by the Test Base Unit. Besides the performance of normal Air Base duties, the Air Police of the Test Base Unit maintained a Badge and Identification Section and were responsible for the security of the sample return aircraft arriving at Eniwetok, for guarding at accident scenes, and for providing Air Police representation on the Eniwetok Military Police patrols. Before the departure of Task Croup 7.4 to the proving ground, the Security Section compiled from all the participating elements lists of names, together with rank and security clearance status, of all persons AFWL/ HQ 345