The monitoring agency is notified of the job or class schedule and the locations so that there is not an alert mistakenly sent out that they have left their designated area.
The other type of ankle bracelet uses Global Positioning System (GPS) technology and requires a mobile phone to be carried by the defendant in some cases. Some GPS ankle monitors incorporate the mobile phone into the device. In recent years, GPS ankle bracelets have been used to enforce restraining orders (How Does a House, N.D.). Criminal justice organizations now use electronic monitoring for a wide variety of reasons such as pretrial supervision and a supervision requirement for some offenders being released from prison. In these situations, these are more often than not used as an alternative to incarceration. Some states now mandate electronic monitoring for released sex