Network Interrogation is an active capability used to supplement the passive collection core with the ability to attract potential targets and collect their information, their calls, their mobile identities, and more.
Interrogating a network involves surveying the local service provider towers, drawing in targets, and filtering the results gathered. This can provide the surveillance officer with live voice communications of targets in range, as well as necessary tools used for following targets, researching target's actions, and so on.
Using Network Interrogation, the surveillance officer can permit or deny a potential terrorist from making or receiving a call. Advanced abilities include intelligence gathering on the target, discovering accomplices, historical travel paths of a target, and other sensitive information that more Law Enforcement Agencies require, namely, an intercept solution that yields reliable intelligence to act on.