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2025 RELEASE UNDER THE PRESIDENT JOHN F. KENNEDY ASSASSINATION RECORDS ACT OF 1992

SECRET

* 228

DAVID L. CHRIST

Chief of TSD/Audio Operations Branch witting of the following:

All audio operations world-wide since December 1957 to present

date.

Complete knowledge of all RED aspecte of audio equipment

research.

Had knowledge of certain Staff D and Fi equipment and operations.

Complete knowledge of all audio assets in production and stocked

for use overseas.

and

Clearances through

" Top Secret, Special Intelligence clearance,

"R" clearance.

World-wide knowledge of the location of all our audio technicians.

Having previously been with the Applied Physica Branch of TSD,

he was also aware of many of our other R&D activities.

As Branch Chief in TSD, be

has full information on all personnel

in ISD and g eneral knowledge uf the overall activities, including

the research programs.

He has been to Isolation many times.

SECRET

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