• REF ID:A65572 

i::e~ti::icted 

1. ~v:·/ AS-22 23.Jan,1947 1ll :J>-l5, lntlllJ' lql,lj.pmllt IAt.elli&eaoe kl-Ylc• 

i. !he Ifttel.lipnce m:daion, :roas; 1• oont.elpl.atiD& pUlia)dR& 

in the near rut.ure a Jl81IUl. on &*V 14Upmnt. latell.1pnce Senice, and it 1• 

deairaele that the J..gener .haft • ...uon in thi• ..... 1 cleftted io Heh rm .. it a7 pertora. 

2. 1be atkohecl article ha• be• prepand lq' i'<'DGAS-90 and inctludea 

detail• ot operation dom 1- and including Dbi•S.- aacl "1n&a t.nd. 1• M8ed on 

tM a1n1pUon that Arlq' SecU'itr L1a1•on De\aaMlnt• an ••\ul.lt 1a uu and 

a•d--d t.o Anf¥1 eupa, end D1n110 l•ftl• and to tsollpU'eatl.e Ail' POJ"H J1Ndq_U11rtara. The acUv1t1•• ot ~mGAS-78 alllll ii!IG.'..5-8'), with reepeet to thi• nnice, 

ba ... been inelQded1 and the article hu been ceordlna\fd witb theH two diri.ai .... 

3. a.quest comenta a:od/or aonciUJTeQQ• Ht later than JO Jam1a17 

1947· 

1 Iacl 

Section-, PK 30-15 

<lKORGE A • .BICnER 

Colonel, Signal Corpa 

Deput.1 C!Wat, ANT Seourit.7 A&m&7 

'kt. 491 

Declassified and approved for release by NSA on 04-24-2014 pursuantto E.O. 1352a 
ii! • 

,. 

SJE'l1JOI -

' 

-o CJIOARIZ'ATIOL. - F.a.ab Jntr, Corps, and Di'l'is:lon, as ... u a caaptNble 

.l:1r Force haadquartera11 'rill h&Ye aaaigned to it an ~ Security Age.mi 

Ltaiaon s~ One at the duties r>t this aection 19 to prori.de E~ the 

proper aid rapid handling and aploltation ot all captured 81181Q' •tarial partaining to crJPtognll*J' and cr,,pt;a.aaqaiso In order to accmpliah this fumtion, 

1).et 

each Ar.- Securit7 Aeea::> ld.aison SH:tion will establish as one ot ita cmponanta . at. least one EElS team cons:lating ot two offtcara., One of tbeae ottioers will 

be trained in the fumamntala ot cr:vptograJilJ" and cr,ptBmlJsia; the at.bar 

offlaer vd.ll ba a linp:lat, qualified to conduct interrogatioaa in -the 

oparat:l.oml &reaD 

-o DUlIES. • It ia 1ibe reaponaib:llit7 ol tha 1118 team of the Amr Seami.ty 

~·.,,. Id.atson s~":n to -- an 1-diate and thorough imreatigaUDn and 

report; comarrd.ng eftrT captured e1181qy ita hn!.ng mw apparent connection 'Id.th 

crn>tograJiV' or cryptanalJ&isa This inveatigaticm. will include tM tollori.ng: , ao Prcnpt avaluation of the materialJ in acme cases the intcrmtitm :Lt at'tarda ... 

_,. be ot BUCh grm.t 1:mpartame that i ta 'imiediate exploitation 'llllf' a.tract the 

nacesa o!' current operations. ' 

bo Determination ot amplete details regarding caplmre ot tba material; 

\1hen1 where• and 'bJ' \lhcll it 11BS capturedo 

c. 'Ibara indicated,, an irmtstigation at the ac9na ot' the capbure. to detend.ne 

dutt'ber other item are available, wheth8r :U..""iiher ini'cnaticm S7 be daduaad by 

I 

8 trained Cl"JPl;ol.ogic offiO&r I &nd 1lhather 8D81V pal"Sormel ant aftilable fer 

interroptiODo 
• 

• .. .. 

- clo !!l°Wn'cgrHicm of Er.ilable enmw pal"BCll'.181 ~ knmledp of tbe 

astehlo Dai.ms; the caure:e o: smh illtmlrcptioa the tolloving llDSt he 

~I 

. (1) the n!atioahip at "be priaomr to tbe capt;ured item. 

(2) !be nature or tba captured iiimt its f\umUoa, and t.hra idant.ity ot 

the 'aing argallisatlon. 

(3) Details of aparatiaa 1D the -case of DCbanical or el.Glctri.Dal ac'trims , 

(4) Ot;b.er S]*:'lfic questions, depending upon the Da't'm'e ot the mterialo 

The Anr' Sec"Gl"f.ty &....,. Liaison ~tHt 1'1111 have available IHmD'al ditt&rent 

prepared llats ot apectt!o qwi;icns tor uae b.r DIS tsam. !er amapls9 the 

qmstiomnc ot a prlsOnm" who wo:rkad as a cla:rk in a message oeme waald 

F.o::aed along ditt'areab llw tra ~ of a pri.scmer 1ibo 1:lm'lCld ln a ~ 

anal1'tic aectiCXl'I 8J!deaYaring to bNak oar o:m Cl'J]Jt~. 

( 5) !ha a:is tea rill aubnit a repcrt, together witb the aci.pb1R'Qd ra'9ri.al.9 

aa upsd:lttoull' as -poes1ble to t.be ~ ot the Any Seaur:L~ Ap=ar I4aiaon 

s~';. ot the mm M.pr aohal.an. 

, 

~ DSPO!BmILIT}lm OF CCl!IM.!l>ID. • Oamarders of are1a dam thrcmp 

Diri.atona, ift wblah it ta contmplated that SIJS t8DS t1lll apm"Bte51 'Oill 

render naomaBl'J' aaaiatanae tc tacili'\ate the aaccuplis!msmt of the mm nr.tsaiOl!'.o 

S1di assistance narmll7 trlll :lnolude the isaue:r.m ct "'88•a, cm!l!tarsips'2 q 

the oGmlla1'Der or his mtharl.sed J"elr•aemtativa; perid.tting the tam mraat.."l'fc"Ht\ 

puMp tbrcmpout tba area, mm access to all captured •DelV' cznwtaaterie!~ 

=-. iS3lS'l'AICS m<li' G-4. - 0-2 '\idll intara the IE1S te• roprding -.ttars of 

~ imerast, &llCh aa lcaati• ot installntcm • penO!llilDl that ehaDld 

be ".b!Rstipt&do 
• 

• 

• • ~ RESPO!f>IBILI'l'Dl'S OF CAPl'URIN'l IEHELOD-ir •The capturing aohelon bas the 

direct responsibility for the :Unnadiate renorting to the Al'IW" Security kgpBllT 

Liaison ~1 at the nea..~st Division~ "1igher headquarters of all captured material, installations, and personnel having any apparent connection 

with cryp\o~apby" or cryptanalysis. This will include iractical~ all 

material in a captured message cemer9 

a.a Independent jUdgment must be exercised by the capturing ecllelon in 

the marmer o.t mald.ng such a report; as imi.cated in paragraph -a,, information 

regarding emDJy" aryptographJ' or cryptanalysis ma::! have a direct bearing on the , 

success cf current operations. For example, capture of current. enem;v codes 

or ciphers, er ot plain-text messages, may mice it possible tor our own 

tarcas to obtain advance lmOlll'ledge or details of' the enenr plan of. batt;J.e 

E,ovidad the material is -.de available immediately to the A:rrq Seour.itJ" Alf!MF 

14.aison ~ for exploitation bet'ore the enentr has discovered his lcaao In 

such a case, the oapturi.nt:t echelon should make a brief am direct report to 

the ArmT Security .. '.tf:e1«:7 Liaison ~\n at, the nearest Division headquarters 

by the most expediti.ous means, preSUDBbq radio or wire, wi tb use ot a sa01Jre 

cryptosyst.e'l!g 1.f it is necessary ... o send by radio or wireo 'l'bis report should 

be concise am clear, merely describing the captured material in brief' terms, 

giving the exact location where it may be i·oum, and the mme o-e' uhf organization havins custodyo 

bo The brief report. must be supplelnented bJ' a writ.ten report as soon as 

practicableo Nritten reports w.Ul include details surrouming tbs capture and 

all observed infarmtion ragard:lntl the use or the matarialo 

c 0 Similar reports 'llUSt be 1Dllcla when a'Djf' evidence is discovered indicating 

911811\Y' efforts or succeaaea in l:reald.ng our OfllJ cryptosystemso 

-3-

ETi69