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USAF OSI History 1948-1950

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This is a history of the USAF Office of Special Investigations covering 19 July 1948 to 30 June 1950, prepared for the Inspector General on 22 November 1950 and released with redactions by AFOSI under FOIA in December 2010. It describes how OSI was set up under Brigadier General Joseph F. Carroll to bring the Air Force's criminal, counterintelligence and procurement fraud investigations under one command. It also covers the 25 district offices, the headquarters divisions and the investigative procedures. The text does not discuss UFOs.

  • p. 17 …P•:nomel on cmt," with t.he Di:rect.en.te are aatd.gned to Headquarters…
  • p. 18 …29 Headquarters USAF dated lS Jul7 1948 'JI AFO!P unniabered letter lieadqua:rters USAF 321…
  • p. 20 …have been assigned to Hea.dquart.ere and Headquarters Squadl'on USAF . J . The Office ot…
  • p. 22 …The aTe:rage district headquarters has been statt'ed by key personnel who,, under the direct…
  • p. 23 …Through OSI Headquarters the twenty-five (25) district o.f.tlces have been drawn toget.her…
  • p. 27 …All investigative work pertonaed withie a particular district office area, has tlowd through the district headquarters…
  • p. 33 …qui'red compa mantaliz�tion in the Headquarters, USAF. The fluid nature ot iDVest.::tgative activities…
  • p. 36 …r,erf'onned 11ntil such time as Headquarters OfiI was advised and inst rud,ions 'I…
  • p. 73 …The Office of Special Investigations, Headquarters USAF, exercises operational control over all Air Force investigative activities…
  • p. 74 …b, District Headquarters. The 25 OSI district headquarters and the area jurisdiction of ea.ch are…
  • p. 75 …12 • Headquarters at Seo� .Air �-!'.�E;\)3ase, Bellevill�J Illinoh; (mailing aggress : Scott Air Force Base…
  • p. 76 …19 - Headquarters at Fairfield-Suisun Air Force Base, Fairfield, California. Territorial area consisting of the following…
1. As in the field o:t personnel bRckground investigations, .AFL 20-4
dated 1 ': t'uly 1%� initially charged t,he OSI with the !unction of
2.9
carrying out the cmmter-i.ntelligence mission of the ftir Foree . The
transfer of this r.ni:�sion , however, was implemented t.hrough the several
directives which transferred the responsibility fo:r personnel backtround
ilt'l'estiga.tivns to the Air Force e.nd to the Directorate of Special Inves
tigations . Thie transfer was completed on 4 Februa.ry 1949 vhen the
counter-int elligence functions at the Direct orate of' lnt,e1ligence DCS/0 were
tranaterred to the OSI by a memorandum of agreement tht"Oush Air Force
unnurr.bered letter AFOIP 321 .011 . The Director of SpeciAl Investigllltions
was subsequently mur.ed to the Interdepartmental Intelllrence Conference •
re,;resenting the Air Foree in ef"fe �t.ing eoordina.Hon or all dome stic
espionage , counter espiona.�e , sabotage, subversion and other nla.ted
intelligence matters a.tfecting int ernal s1i curity.
2. The national aspect ot counter-intelligence investiga:t.ions as
dis+.,inguished fr· m. ex.elusive localized interest hns been especially
evi-dent. in t he .fact lhat individual situations "!Jertaining to treason.
sedition , ""Sbot.a.ge nnd subversive actirtles nonr,a11y have been part. of
a pattern having an impact on the country a.a a "''bole , effectively co•
batted only on a nHtion.ally inte,grated ha.sis . In. addition t o the normal.
nationwide aereet. of counter-intelligence investigations , it hAs fre
quently occurred that such investigations receive the jr,int inv�,stiga,tiTe
effort. of twa or more Federal investig�tin or law enforcerr,ent agencies
both militar:'· and ciT.ilian. Thi s has required that the inve st.igatiTe
�urisdicti0n or these Federal agencies be specified l/ and adequate
liaison , yst1!lr1s organj zed.

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