◆ SpookStack

eee Co geen ee ceeds ante et I a at eat alae ah ne | te Surreptitious Entry ment of microphones. " By memorandum dated September a7, 1968, the Attorney General referred to microphones involving trespass and confirmed his understanding that such microphones would not be used without his authorization, Be. A recent FBI : survey determined that during the my period January, 1967, to March, 1975, the othe pes General authorised operation of 172 microphone surveillances. Prior to September, 1974, surveys to determine ifa nicrophone surveillance would be feasible at a particular | location were authorized by FSI Headcuarters. Some of these feasibility surveys involved trespass. Where a microphone. installation was considered feasible, authority for operation of the surveillance was cbtained from the Attorney General. Since Septamber, 1974, the FBI has followed a policy of requesting authority of the Attorney General to conduct these feasibility surveys. Since that time, the Attorney General has authorized surveys and installations on 23 occasions. — NOTE: a a ae See a P — See letter to the Attorney General captioned “Surreptitious Entry,” prepared b 1