

IMSI spoofing is a product of wireless telephony being an ancient (way-pre-internet) technology, and we’re long in an era where law enforcement (or in this case law-enforcement coded) investigators don’t have to obey laws, such as assuring due process, and unreasonable searches disqualifying evidence. Instead they’re hunting political enemies, and every prisoner of the United States is now a political prisoner.
It also means we don’t have to obey the law, and can start using all-frequency jammers in and around protests and ICE actions to level the playing field. (It will also interfere with regular infrastructure, but it’s not like ICE or the current regime gives half a fuck about that.
All-frequency jammers are older tech and easier to build than IMSI spoofers, and are highly illegal since so much of our commerce and communications depend on radio. But the current [FCC] has also been captured and is failing to do its job.
Any Amateur Radio enthusiast will know how to make a jammer. And current battery technology would assure you could make a handful that are portable and powerful enough to shut down blocks and blocks of municipal communication. This is playing pretty hardball, but then ICE isn’t playing by the rules.
At the point you already have a tense paramilitary operation clashing with protests in what is escalating towards lethal violence, I’m not sure finding wideband jammers will be the priority of responders in the area, at least not the first few times.
Though in times of peace and order, wideband jamming is, yes, a big no-no.