People in Connecticut who are arrested for or convicted of certain offenses may be required to submit to electronic monitoring by probation officers or parole officers. There are two types of systems used to monitor people as the Connecticut General Assembly explains.
An electronic monitoring system may rely on global positioning system technology or on radio frequency technology. Both of these systems allow probation or parole officers to set a particular schedule for a defendant and then track the adherence to that. For example, if a person is allowed to leave their home between certain hours of the day but must be home by a certain time, the ankle bracelet used in either technology can alert authorities to the comings and goings of a defendant. In this way, courts can track whether or not a person is following the designated schedule.
A GPS unit can actually get even more information and show a defendant's whereabouts at any time. It also shows how long they are at a given location and even how fast they may be travelling.
The Pew Charitable Trust conducted research that indicated that use of electronic monitoring systems grew dramatically between 2005 and 2015. By the end of 2015, more than 125,000 units were being used. Ten years before, there were fewer than 60,000 units in effect. These systems are used by federal authorities as well as those in the District of Columbia and all 50 states. A defendant may be required to wear a monitoring bracelet when out of custody while awaiting trial or when on parole or probation.