Earlier quoted context omitted.
But then, the simple fact that you're using a SIM card bought from a known SIM-trafficking criminal makes you worthy of interest. The phone being instrumental in a first crime, it'll be easy to get a wire warrant and listen for the subsequent crimes you'll commit by using it. Most criminals aren't masterminds (and the few who are, are genrelly designed with other names, such as "politicians"); if you make it difficul…
> But then, the simple fact that you're using a SIM card bought from a known SIM-trafficking criminal makes you worthy of interest. Do you think someone who bought a sim-card from someone else is going to "register" that card with authorities? "Hey, I just bought this card, so you can't follow me. Where do I update my info?"
Once you know a SIM card is suspect, because it's been registered by a known addict and trafficker, you can put a wire on it even if you don't know who holds the phone. With this plus BTS-based geolocation, your chances of catching typical, opsec-illiterate criminals are vastly improved.