A method to track an individual wearing a battery-operated wearable and lockable tracking device. An identification number is provided on the tracking device or separately from the tracking device and remotely stored. Device location information about the tracking device is received from the location tracker. Based on the location information received, a determination is made whether the individual is potentially subject to a condition. In such case, the device location is tracked, and the individual is wirelessly alerted and tracked. Upon tracking, the individual is identified by scanning the QR code and revealing the personal information about the individual.