a. Control measures.
MP may use several types of control measures at a defile. Based on
METT-T, military police choose the measure suited to the situation.
They
use the simplest method of control and, when possible, they use two control
measures to ensure the operation runs smoothly. An illustration of a large
defile is at Figure 3-2.
Figure 3-2.
Large Defile Operation.
(1) Visual Signals. The use of visual signals is a common method for
shorter defiles.
Visual signals tell traffic when to move.
The visual
signal can be an arm motion, a flashlight, a hand-held flag, or any
technique that shows vehicles when to move. MP usually use visual signals
in small defile operations where holding areas are not needed.
A good
example is a construction site.
(2)Radio/Wire.
An FM radio or wire communications are used to tell team
members in holding areas to hold or start traffic through the defile.
Communications can be linked directly between holding areas or be routed
through the squad leader at the defile site.
MP use wire as their main
means of communication. A wire hot loop can be set up between the defile
and the holding area. If they do use FM radio, they use it with caution.
Continuous message traffic may be monitored by enemy forces.
Also, radio
signature will give the enemy a target.
3-5
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