[It's a bit different from how he would've done it, for sure. Observing key locations over targeting specific individuals? It seems like it'd be overly tedious to him when many of those locations would go completely unused, but it's a bit easier to maintain compared to personal tracking devices. He considers the diagram, mumbling half to Hakkai and half to himself.]

I'll check on them. Since most of the work has already been done, it'd be a waste not to make use of them somehow... ah, but if he was collecting data it'd be important to know where the information was being sent. It'd make more sense to transfer it all to a central location over storing it on the scattered devices, but if that's the case then the files might've been lost with the temple... if they're still operational there might be backup files stored on the devices, though...