It is privately funded by Merseytravel which in turn reports to the Liverpool City Region Combined Authority.

The executive also appoints the service's officers who are formally sworn in as police constables by a justice of the peace.

Personal protective equipment (PPE) include: All officers are trained Police Level 4 Response Driving Standards, as MTP is a specialist traffic service.

The newest models bought in 2010 being the Land Rover Discovery IV (3 litre) and Ford S-Max.

2 × Land Rover Discovery IV, 1 × Mercedes Vito Cell Van, Mersey Tunnels Police was heavily criticised by the Merseyside coroner for its handling of a pursuit in which two 14-year-old boys were killed in 2003 after crashing a stolen car into a roadblock set up by Mersey Tunnels officers.