FEDERAL BUREAU OF INVESTIGATION

• Document Type: FOIA
• Collection: FOIA Collection
• Document Number (FOIA) /ESDN (CREST): 01430454
• Release Decision: RIPPUB
• Original Classification: U
• Document Page Count: 3
• Document Creation Date: December 28, 2022
• Document Release Date: August 7, 2017
• Case Number: F-2007-00094
• Publication Date: May 8, 1973

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TSD has had a close working relation::�hip with the
the past few years. 'The Falis .the only organization that has
been fully briefed on TSD audio techniques and equipment. The
following are situations where TSD equipment and guidance were
involved in operations:
S. ERE T
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Approved for Release: 2017/01/18 C01430454