Briva wrote:
I was told that was the stuff of tv shows. But it's how they tracked the Austin bomber
" ...the FBI was able to come up with a list of phone numbers and individuals that were in the area of the bombings when they occurred using cell-site analysis and high-tech computing systems that can find patterns of callers in certain areas."
http://www.kxan.com/news/investigations/how-investigators-found-and-caught-the-austin-bomber/1066069358
Even our small town police have surprised me in the use of surveillance technology. While the way it's done on tv may not be exactly accurate, the ability of doing it is there.