nuclearcat wrote
It is distributed only by cellular operators, and it is preprogrammed, as it need to connect to their network. Alfa and touch dont have support of femtocell.
Foreign one wont run, because owner of it, operator, check cell location and they have no permits to operate here.
I agree with your points but also I'd say that "maybe" it is possible to do the complete opposite of what you said.
At the end, not all jamming/spoofing/sniffing devices are purely used by LE and they are obtainable in a way or another.