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Assistant Attorney General Civil Rights Division We are enclosing for your information one copy of the aforementioned March 22, 1963, document entitled . "Investigative Techniques." Ynasmuch as the remaining — . memorandum deals with ah anonymous source contact prior te — - January 1, 1966, we are net @nclesing a copy thereof. pl NOTE: oO wr, 358 Philadelphia airtel of 8/2/76 (attached to yellow) reported the discovery in that office of the two unserialized documents noted in the above letter to the Department. On instruction of Deputy Associate Director Adams this is being brought to the attention of the Civil Rights Division. _ . Do a _ Laboratory f : APPROVED: Ext, ime Legal Coun.. ‘ ; Assoc. Dir: _ Fin. & Plan. & Eval... ns Yh . Dep AD Ad —— Gen. ATV ew concent Rec, Mgimit-... - a, * v JN pep. AD In Jeb. eseeeeen - Inv _ Asst. Dir.: intell Tele TANG een