conducted as discretely as possible; and if it is ever necessary to confide in
someone other than a member of the surveillance team, he should not be told the
exact purpose of the surveillance. Also, he should be cautioned not to mention
its existence to anyone. An example of such a person might be the owner of an
The activities observed during a surveillance may later become
evidence in a court-martial.
Or they may be used as the basis for
interrogation. Therefore, it is important that a chronological log be made of
all pertinent observations regarding the subject. It is equally important to
include a description of his actions, of participants, times, and places. The
log should also contain the results of any follow-up inquiries made at places
where the subject stopped. The log should contain the surveillance techniques
used by the investigators involved.
When a surveillant, or a team of
surveillants, is relieved of duty, the log should be given to the successors.
Any necessary oral observations or comments should be given also. A written
log also allows for objective study.
It aids in the evaluation of the
surveillance results and techniques at the completion of the investigation.