It was where they started, which was following up on threat telephone activity, false police reports directed at prominent people. For the making of which the malefactor had probably seen this kit as an ideal opportunity, but for which purpose it is massively expensive and over-provisioned.

And that's the point. No-one would have thought bad of them for following up on stuff within their bailiwick and uncovering a scam support operation. It's the old caught-the-major-bad-guy-in-a-routine-traffic-stop tale, after all.