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f . : ) uf en STATES. snalexe OF irce FEDERAL BUREAU OF INVESTIGATION WaSRINGTON 325.02. G © gNin - August 17, 1961 In connection with the use of microphone surveillances it is frequently necessary to lease a special telephone line in order to monitor such a surveiHance. These situations occur when it is impossible to locate a secure monitoring point in the immediate vicinity of the premises covered by the microphone. Even though a special telephone line is utilized, this activity in © no way involves any interception of telephonic communications and is not a telephone tap. In the New York City area the telephone company lias over the jears insisted that a letter be furnished to the telephone company on each occasion when a special telephone line is leased by the FBI, It is required that such a lease arrangement be with the ‘approval of the Attorney General. In the past we have restricted the utilization of leased lines in New York City to situations involving telephone taps, all of which have been approved by the Attorney General. We have not previously used leased lines in connection with. microphone surveillances because of certain technical difficulties which existed in New York City. These technical difficulties have, however, now been overcome. If we are permitted to use leased telephone lines as an adjunct to our microphone surveillances, this type of coverage can be materially extended both in security and major criminal cases. Accordingly, your approval of our utilizing this leased line arrangement is requested. A sample of the letter which it is proposed will be sent to the telephone company if a leased line is secured in connection with microphone surveillances is attached, Approved: yrs YAMA, Date: ae ore ~~ -— 1 _ -~ / 77-S12PP—fi6 badly SLOGUBR ' vit AER ; ae ie MY oh st