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—CONPISERTIAL— See ee tee Headquarters Air Defense Command Mitchel Air Force Base, New York 4 February 1948 D 333.5 (CIB) SUBJECT: Investigation and Reporting of "Flying Disc" Incidents TOs Commanding Generals, First, Second, Fourth, Tenth, Eleventh, and Fourteenth Air Forces, Air Defense Command ATTN; AC of S, Aw2 1. The numbered air forces of this command are responsible for the prompt investigation and reporting of incidents relating to "flying discs" which occur within their respective areas. Numbered air force A-2s, after evaluating disc incidents, will determine the extent of investigation. Futile expenditure of military funds and manpower must be avoided. 2« "Flying dises" will be investigated as provided for in Counter Intelli- gence Incident Cases, taking cognizance of the USAF Operating Intelligence Echelon structure. Where it is evident that witnesses, who were together at the time of incident but who are widely separated at the time of investigation would corroborate each other's story, only one witness need be interrogeted. If there is a reasonable indication that a reported incident is a hoex or the fabrication of a publicity seeking individuel, no further investigative effort will be expended. However, a report of such circumstances will be submitted to the FBI office concerned. ase CIC personnel attached to the numbered air forces of this command may be utilized to prosecute the investigation of subject incidents. be Investigations will be coordinated with the FBI Office concerned in accordance with instructions contained in letter, this headquarters, D 333.3 EX, subject, "Cooperation of FBI with AAF on Investigation of "Flying Disc’ Incidents," 3 September 1947, S$» Reports will be narrative in style and will cover only those facts pertinent to the subject. Where source credibility cannot be established, or when an incident lacks foundation, the report will merely state same. Two types of report will be sutmitted on all incidents. ae Spot Reports (fragmentary reports) will be submitted on all incidents and will be followed by a Letter Report. be Letter Reports will be sulmitted to report the completed investigation of all "flying disc" incidents. 4. Reports will be sutmitted in duplicate promptly, usually be regular mail. However, Spot reports on incidents of substantial character, i. e+, those in which the patent credibility of the witness is beyond challenge and whosé4technical Lg cy ~~ tg ENCLOSURE -