TVS21 employs patent-pending technology that combines software encryption and Electronic Hardware Security Keys to ensure that only law enforcement agencies can view the recorded images, thus ensuring that the privacy of drivers and passengers is not compromised.

The Electronic Hardware Security Key (EHSK) and Password are required to gain access to the TVS21. Each Key has a unique ID, which the TVS21 unit registers each time it is used to gain access to the TVS21. Law Enforcement agencies with their Police key can view images as well as the access-log of the TVS21 unit.