Variation of the "ABC" Technique,
Techniques of Vehicle Surveillance.
A vehicle surveillance is necessary when the subject is
driving around in a vehicle. This technique demands additional variations to
those used for foot surveillance. A dependable vehicle must be provided. It
should be similar to the type commonly used in the area where surveillance is
to occur. This may be a panel truck, automobile, or large truck or trailer.
The license plates on the surveillant's vehicle must not be identifiable as
They should be of the state or county in which the
surveillance will take place. If more than one vehicle is to be used, two-way
radio is helpful. Consideration should be given to the possible necessity of
providing for additional gasoline, water, first aid equipment, and road maps.
Two surveillants should be provided for each vehicle employed.
(1) It is often advantageous and sometimes necessary to combine vehicle
and foot surveillances.
The surveillants will remain more alert; it will
forestall boredom; and it will help prevent an apathetic surveillance.
Whenever a subject stops his vehicle and dismounts, one surveillant should
dismount and follow on foot.
That way he can better observe the subject's
movements. This same action should be taken when the surveillant is using a
vehicle to follow a subject. If a subject parks his vehicle and remains in it,
a foot surveillant can better observe the subject's actions and those of
An accomplice could throw or drop something into the subject's
vehicle without being seen if both surveillants remain in their vehicle.
(2) As in foot surveillance, techniques must be changed in vehicle
Such changes should not be obvious but discreet.