This technology is not new. The use and implementation has huge federal hurdles before it could reasonably be instituted "legally". It has been used and tested extensively already.
It is one of the hotbed issues in my current work venue in relation to contraband cell phones in the hands of California's inmate population. One major technology giant is in the process of providing cellular jamming devices in all California prisons....in addition the company that won the contract to install the systems at all of the prisons will actually pay the state nearly $1 million per institution to install thee systems. On a side note, this same company currently is the only provider for authorized inmate payphones in California.
The "Managed Access Jamming" will authorize select devices to function by ESN and can either block, intercept or monitor all other phone, data, text or media applications. Supposedly all without any impact to surrounding communities....which if it did occur would come with huge fines and possible jail time for every FCC violation that occurs. According to our department heads, the technology would be used exclusively to block transmissions and any monitoring would have to be by issuing a warrant.....
http://prisoncellphones.com/blog/201...amming-system/