Mobile CCTV for taxis, also known as Private Hire Vehicles (PHVs), is a security system that involves the installation of a closed-circuit television (CCTV) camera in a taxi or PHV to monitor the interior and exterior of the vehicle during operation.  While passengers may have concerns about privacy, the installation of CCTV in a taxi or PHV is generally seen as a safety measure and can help deter criminal activity. It’s important to inform passengers about the use of CCTV and ensure that their rights to privacy are respected.