(ESTIMATED PUB DATE) MEMORANDUM RELATIVE TO THE USE OF TD IN INTERROGATION

• Document Type: SPECIALCOLLECTION
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): 00144769
• Release Decision: RIPPUB
• Original Classification: U
• Document Page Count: 3
• Document Creation Date: November 22, 2024
• Document Release Date: January 15, 1983
• Publication Date: January 1, 1950

MEMORANDUM RELATIVE TO THE USE OF TD
IN INTERROGATION.
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A. ADMINISTRATION 011 'ME DRUG
This substance can be administered to the subject either
by injecting it in cigarettes to be smoked by trubject,, or by
placing it in food which the subject is certain to consume.
The use of cigarettes is somewhat unsatisfactory as the
dosage cannot be accurately controlled. This results from
the variety in smoking habits, since some persons inhnlo
deeply, some slightly and some none at all. It is necessary
for the impregnated portion of the cigarette to be burning and
the smoke therefrom. inhaled by tho subject in order to produce
the desired effect.
When the substance is placed in food which the nubject in
certain to consume the dosage can be more carefully.contr'olled.
Since the substance is odorless, colorless and tasteless, it
cannot be detected in the food. The capacity of various people
to absorb or tolerate this drug varies. I have found that a
maximum of 3/100 c.c. is sufficient to produce the desired
effect on even the most resistant subject when'-administored -
internally. Since some prrsons do not have as ;re/xi a *tolerance
as others, it is suggested that the drug be edministered.in
successive doses of 1/000 c.c. until the desired effect is
reached. The operator is cuationod that internal dosage may �
take as long as 45 minutes to take effect, and that ho
should not become impatient and thereby give an overdose
of the drug in attempting to expedite the process.
B. TECIMIQUI:
If the operator will remember that the drug roughly
produce's the effect of mental intoxication without:the symptoms
of physical intoxication produced by alchbol he will have a
practical estimate of the effect of the drug. In order.to
obtain desirable results it is necessary to "sot the stage"
so the subject-will not realize he is the object of interro-
gation. The drug will not produce desired effect when the
subject is on his guard as the result of normal apprehension.
The interrogation shpuld be carried out through .pretext and
indirection. The technique used should be comparable tO that
adopted by investigators in a "roping" job. This means the
subject's confidence should be rained through subterfuge and
pretext by the operator prior to the attetpt to 7aln the
desired information.
Outstanding characteristics of the drug:are tha accentuation
of subject's personality. If subject is a-braggart the d7ug
will increase this trait. If he is a sensualist this character-
istic will be exaggerated. The drug breeds irreaponsibility
and relaxes inhibitions. It causes a parson under the in-
fluence to become excessively interested in a topic of
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conversation to the point where he will insist on giving
his viewpoint on subjects under discussion. Appetite snd
thirst will sharply increase. It is well to accompany
administration of thn drug with the cinsumptionef alcoholic
drinks for the reason if any unusual sensations are experienced
by subject they will be attributed to the alcohol and not to
another cause. Alcohol does not appear to affect tho use of
the drug although, of course, excessive consumption of liquor
would produce a dual intoxication. '
Overdosage will not have serious physical results, but .
will make the .subject aware some foreign substance has boon
administered to him. Upon receipt of an overdosage the
subject will expc.rience vertigo and faint and bgcome un-
conscious for several minutes. Consciousness will ihen-be
recovered and the Subject will quickly return to normal�,- but
he will be fully aware that something has happened to him.
Tho administration'of the drug is uszleso in a formal
inquiry and can only be used successfully as ma mccompanyment
tj the gencral "roping" technique. A basis of trust and
friondbhip.must be established by the operayJr before
administering the drug.