In this situation, there would be a difference in phones that have GPS and those that do not have GPS. If the phone has GPS, and it is enabled, the location of the defendant can be tracked fairly accurately. However, if there is no GPS, then it would be very difficult to track a position. For example, normally a phone would be using the closest available cell phone tower. The case is different, however, in densely populated areas. Cell phone towers are often very busy in these areas, so a cell phone’s signal could jump from tower to tower. In addition, the presence of buildings may interfere with the signal. Of course, the records will reveal if the data corroborates the plaintiff’s claims. I am a professional electrical engineer who has worked on software systems for over thirty years. I currently work as a forensic engineering consultant and I am certified in data processing. I am especially qualified on issues of cell phone tracking because I previously testified about using cell phone data to locate a person in other criminal prosecution cases.