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****J*oi '.,.y s^pa tetrehvdiNJctainobinol acetato derivative* Another tom working on another * # group of subjects will use straight interrogation, LSD with interrogation and. a -tetr^'i^arocojuiabinol acetate derivative and Interrogation, ; I-ater the third lean with another group of subjects will use straight interro^— gaticn arid a oor.ibir&tion of LSD and a tetrahydrocannabinol acetate^ derivative. f 3?-y/ A mating of all too iioKbers of thd Wsearch project \411 bo bidefcd^T :I on too drugs to bo used and ell of^ thorp^wmcoloaical end nodical know- ledge gained §o far in the use of toeso drugs. In selecting groups of subjects for exporinentation, the following objectives will be sought* 1) . Snhjeeta will ha selected who have denied allegations of various ldiic;3JthstocsiiLbozeheclted or atronglyJaosus»d_ILtl_I on toe basis of^reviousl^Mtablitoed records. 2) As far as possible, toe aetunl resesrch mn acMiiisteriu' drugs will not bo aware of the drug he is administering and placebos niUie interspersed with drug actainistfatioii. 3) Precautions will ha taken to ' neutraliso. ago, intelli- : gcnca, physical-jcond^ and any other controllable factor in selecting groups. Ad- saLniotratioat of drugs will be done both openly and surreptitiously • Sound recordings will be rado of the interrogation and written reports will be obtained in other casco. i h