"SIDE TONE DELAY"

• Document Type: SPECIALCOLLECTION
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): 00184402
• Release Decision: RIPPUB
• Original Classification: U
• Document Page Count: 2
• Document Creation Date: January 21, 2025
• Document Release Date: January 15, 1983
• Publication Date: February 4, 1952

r'ANOARO FORM MO. 64
-Offive Memorandum � UNITED STATES GOVERNMENT
TO : File DATE: 4 February 1952
FROM :
SUBJECT: "Side Tone Delay"
/9
1. In accordance with plans established at the conference of 29
January 19512, attended a conference 4 Febru-
ary 1952 in in the
in connection with "Side Tone Delay" contract matters.
2. Present at this conference were who of-
ficially represented OSI and this'Agencu . who is head
of one of the special units of and
, who are to carry out the research in con-
nection with the "Side Tone Delay" devices.
3. position at the conference was, of course,
official while attended for whatever assistance they
could give and be2m.se of immediate operational interests in the "Side
Tone Delay" device.
L. The primary object of the conference was to come to an agree-
ment or meeting of the minds as to specifically what
were to attempt to do with the 314,000 before the matter
was officially negotiated as a contract by After considerable
discussion, it was agreed that would attempt to
develop devices along the "Side Tone Delay" principles which could be
used both at permanent installations and/o., E. portable type for field
use. It was also agreed that, . - would research along
these lines, develop, if possible, a proto-type instrument, and if
this instrument proved operationally sound, they would prepare in-
structions, etc.for its use and the technique for using same. In
addition, it was also agreed that the research would be general and
would procede toward an ultimate goal which would be possibly a "Side
Tone Delay" device which would have no attachments on an individual
and yet would be capable of being used immediately in conjunction
with a polygraph or some other device which would indicate deception.
Furthermore, it was agreed that the research was not to.be directed
at an immediate and specific idea, but that it would be developed as
best thought out by with conferences laid on when-
ever it was necessary to make an important decision regarding either
a change in the device or concentrating on one particular device or
technique.
OP,
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5. As far as security in this matter is concerned, the interests
of CIA, of course, is concealed since'from a fiscal point of view,
CIA merely is advancing 314,000 to who is in turn paying the money
to - The project itself is to be unclassified and
neither nor this Agency will furnish any classi-
fied material.
6. As a protective device, the contract will contain a clause
which will give this Agency the right to screen any written matter
concerning the "side tone delay". prior to publication and also this
Agency will have the right to purchase any instruments developed by
this research. Furthermore, it was agreed that this Agency could in-
spect the progress of the research from time to time and if it was
being tested operationally, this Agency could participate in/and ob-
serve this testing.
7. For a matter of record, contract negotiations between
and will be carried on by the special contract
section of A copy of this contract apparently will be given to
"...nil for his files and reports, both fiscal and other-
wise will be furnished him from time to time by
8. It was agreed by the mom representatives and
that the contract date for the beginning of the work would be 1 March
1952.
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