Search lane progression and boundary markers
Tripwire feeler
Image 2. Crow’s foot method – tripwire feeling
The following series of six images illustrates the basics of an open area tripwire feeling procedure. They show the systematic use of a tripwire feeler, starting from ground level, to waist height, then on to head height from the standing position.
ׁ HINT. The degree to which tripwire feeling is conducted should be driven by the operational threat assessment. This should be documented in the clearance plan.
Tripwire feeler
Image 3. Low level starting at the side (this would be conducted at each side of the lane)
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