Serial 1850

FBI LABORATORY
FEDERAL BUREAU OF INVESTIGATION
WASHINGTON, D.C. 20535

February 8, 1979

To: SAC, Dallas (89-205)
From: Director, FBI
Re: RYMUR
00: San Francisco

Examination requested by: Dallas
Reference: Airtel dated December 19, 1978
Examination requested: Cryptanalysis – Engineering
FBI file no: 89-4286
Lab. No.: 81222024 G UV SH

Remarks:

Enclosures (2) (2 Lab report)
2 – San Francisco (89-250) Enclosures (2) (2 Lab report)

[Page 2]

REPORT OF THE
FBI LABORATORY
FEDERAL BUREAU OF INVESTIGATION
WASHINGTON, D.C. 20535

February 8, 1979

To: SAC, Dallas (89-205)
Re: RYMUR

FBI file no: 89-4286
Lab. No.: 81222024 G UV SH

Specimens received: December 22, 1978

Q 54 – One cassette tape recording of radio transmissions between the People’s Temple, San Francisco and People’s Temple, Jonestown, Guyana

Result of examination:

Analysis of Q54 indicates that a “double meaning” tape code is probably being used between the radio operators. However, due to the date of the tape transmissions, August 1978, and the poor quality of segments of the tape, no further examination of Q54 is being conducted.

In the event San Francisco desires additional work on Q54, a transcript of the portion to be analyzed should be submitted to the Technical Evaluation Unit.

Q54 and a copy of Q54 will be forwarded to San Francisco by the Engineering Section, Technical Services Division.

[Page 3]

FEDERAL BUREAU OF INVESTIGATION
UNITED STATES DEPARTMENT OF JUSTICE
Laboratory Work Sheet

To: SAC, Dallas (89-205)
Re: RYMUR
00: San Francisco

FBI file no: 89-4286
Lab. No.: 81222024 G UV SH

Examination requested by: Dallas
Reference: Airtel dated December 19, 1978
Examination requested: Cryptanalysis – Engineering
Specimens received: December 22, 1978

Specimen:
Q 54 – One cassette tape recording of radio transmissions between the People’s Temple, San Francisco and People’s Temple, Jonestown, Guyana

[Handwritten addition] Examination of Q54 revealed a “double meaning” code being used.

Originally posted on August 4th, 2020.

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