Recognizing that the use of mobile phones in Correctional institutions continues to be an issue, the Correctional Service of Canada (CSC) has initiated an investigation into the various methods available for the prevention of the use of mobile phones in Institutions. The broad groups of “Institutional”, “Detection”, and “Interdiction” technologies reveal a wide range of methods to prevent unauthorized mobile phone use in correctional facilities; however, each has significant drawbacks that limit its efficacy in meeting CSC's goals. The development of a new concept in the interdiction of mobile phone use, the Access Denial Service (ADS), provides an encouraging solution while mitigating most, if not all, of the issues present in the current offerings.
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