Follow any obvious links from the device to other devices or trigger systems. Sometimes to determine the direction of command wires.
There could be several reasons including lack of robot access or suspected Victim Operated devices mean a manual approach must be taken.
The Operator must assess the best access route with a preference given to any route already cleared by previous search or clearance activities.
During an approach, the operator will use visual clues and ground signs to avoid any possible Victim Operated IED triggers.
The Operator will be trying to assess how the device is placed and whether it has any links to other objects such as PSU or command system.
The Operator may use an X ray system to inspect device. Once the device has been investigated by non contact measures such as X ray and visual inspection the operator will decide on the best Deploy remote ECM and other EOD equipment (mule)