MORI 190873

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MEMORANDUM RELATIVE TO THE USE OF TD IN INTERROGATION.

A. ADMINISTRATION OF THE DRUG

This substance can be administered to the subject either by injecting it in cigarottes to be smoked by oubject, 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 inhnle deeply, some slightly and some none,at all. It is necessary for the impregnatod portion of the cigarette to be burning and the smoke therofrom.inhaled by the subject in order to produce the desired effect.

When the substance is placed in food which the subject is certain to consume the dosago can be more carefully-controlled. Since the substance is odorless, colorloss 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/l00 c.c. is sufficient to produce the desired effect on even the most rosistant subject whenadministored intornally. Since some porsons do not liave as great a tolerance as others, it is susgested that the drug be administered in successive doses of l/moo c.c. until the desired effect is reached. The operator is cuationed that internal dosago may

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take as long as 45 minutes to take effect, and that he

should not become impatient and thereby givc an overdose

of the drug in attempting to expedite the process.

B. TLCIIIQUI:

If the operator will remember that the drug roughly

produces 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 "set the stnce"

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 {uard as the rosult of normal apprehension.

The interrogation should be carried out through protoxt 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 Eained through subtorfuge and

pretext by the operator prior to the attemnt to ain the

desirod information.

Outstanding characteristics of the drug'are the accentuation

of subject's personality. If subject is a bragcart the drug

will increase thls trait. If he is a sensualist this character-

istic will be exaEcerated. The drug breoas irresponsibillty

and relaxes inhibitions. It causes a porson under the in-

fluence to become excossively 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 and thirst will sharply increase. It is well to accompany adminlstratlon of the drug with the cunsumptlon of alcoholic drinks for the reason if any unusual sensations are experience Ly subjoct they will be attributed to the alcohol and not to anothor cause. Alcohol does not appear to affcct the use of the drug although, of course, oxcessive consumption of llquor would produce a dual intoxication.

Overdosage will not have serious physical rosults, but will make the .subject aware some foreign subatanco has boon administered to him. Upon receipt of an overdosage the subject will exprrience vertigo and faint and bocome unconscious for several minutes. Consciousness will then-be recovered and the subject will quickly.return to normar,-but he,will be fully aware that sorethlng has happened to him.

Tho administration of the drug is usoless in a formal inquiry and can only bo usod succossfully as an accompanyment to tho gencral "roping" techniquo. A basis of trust end friondship.must bo established by the operayor before administering the drug.

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