Close Range Phone Detector

 

Contraband has been around as long as there have been prisoners, but contraband cell phones are a relatively new phenomenon. Cell phones started out as bulky devices the size of a brick, but market forces and
evolving technology have made them progressively smaller and smarter. Cell phones first started to make their way into prison systems in the 1990s, but the number of contraband phones exploded in the 2000s.

 

Now many correctional systems seize thousands of phones per year. Even basic phones offer unmonitored communication with associates on the outside. Smartphones also allow inmates to access to the
Internet and social media platforms