Cell site simulators (hereafter, CSS) have become commonplace amongst all levels of law enforcement as well as the military. The technology provides enough Signals Intelligence (hereafter, SIGINT) for entities to act on their proscribed goals, often euphemized in the military as Find, Fix and Finish. The pervasive existence of this technology in law enforcement has led to its concomitant use, even in cases that seem to use the data procured as the supporting evidence for the investigation itself, a chicken-and-egg situation. CSS are also colloquially known as “IMSI Catchers,” IMSI being the acronym for International Mobile Subscriber Identity. This data is essentially what a license plate is to a car. It is globally unique to the paying customer whose commercial account is attached to their legal identity. A myriad of other data is available when using CSS but it is logical as to why this specific data point is referred to in slang. CSS’ popularity and sophistication have grown c...