In a University of Washington study, titled "Using Ad Targeting for Surveillance on a Budget," they created a mobile banner ad and a website. Next, they purchased advertising from companies like Facebook and Google that sell advertising based on the geographical location the ad appears, which...

The private investigator has an advantage over criminal law enforcement officers when it comes to investigating Internet crimes.  Much of Internet investigations involve leads overseas. But a police officer or detective  typically must use established State Department protocols to investigate overseas. This can slow down an investigation considerably. The...