IED Clearance Good Practice Guide

3.6.5. SCENARIO 5 – RC-ARMED PASSIVE INFRARED IED

Sewage works

Approach route

Image 77. Main approach route in relation to a sewage works

SURVEY INFORMATION

The local community reported an explosion affecting a council vehicle trying to access the sewage works. The explosion resulted in significant localised damage to the council’s vehicle, killing both individuals in the front of the cab. An NTS team visits the community and conducts several key informant interviews. The council vehicle had been recovered by the local police, who reported that there was no large seat of explosion under or adjacent to the vehicle. Instead, they reported that there was a crater (0.5 m diameter and 0.25 m deep) on the verge of the route. This would have been approximately 3 m from the vehicle when the explosion occurred. The vehicle itself was viewed by the NTS team and an entry hole approximately 200 mm in diameter was observed in the passenger door. A UAV is used to survey the route which is confirmed as being surfaced in tarmac, and approximately 6 m wide. The reported crater on the verge can be observed and is located just before a speed bump. There is another speed bump prior to the entry to the sewage works and there is also another tarmac road entering the sewage works from the other side. No one has entered the sewage works since the NSAG withdrew from the area.

INTENT

The intent of the NSAG was to defend the sewage works as an area of operational importance. As part of this defensive plan they needed to maintain their own freedom of movement along the two main routes in and out of the site.

Technical IED capabilities

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