24 hours a day seven days a week which sees over 16.5 million passengers pass through it each year; this combined with huge volumes of cars, lorries and coaches, makes it the busiest ferry port in Europe. The port also handles an ever-increasing number of cargo ships, cruise ships and a large number of leisure craft at the marina. These statistics result in a very high level of daily interaction with the public which makes PoDP unusual compared with other port police forces. During 2009 officers of PoDP made over 700 arrests for a wide variety of offences including drink-driving, theft, fraud and public order. Hundreds of other traffic and crime offences were dealt with by way of reporting for summons, or by the issue of graduated fixed penalty notices (this is for where an address is not suitable for summons and Port of Dover officers have been authorised by Kent Police to issue these notices). Non-police staff are employed alongside police officers, particularly in the manning of the control room and CCTV cameras which were formerly based in the operational police station just inside the main entrance to the Eastern Docks. The operational police station is now closed and no longer used by the force. There is no longer a headquarters building and all officers are now based in the Terminal Control Building. Ranks The rank structure of the Port of Dover Police is as shown below. Since 2017 the rank of Superintendent has been unused. The former senior management (of two Inspectors and one Superintendent) has been replaced since that time by a single Inspector and later by a Chief Inspector. Facilities and Equipment Officers wear identical uniforms to their colleagues in other forces throughout the country, including the familiar helmet of British police constables. This includes a 'formal' and a 'working' uniform. They also wear stab-resistant vests, carry asp extendable batons, rigid handcuffs and PAVA incapacitant spray. They are also equipped with encrypted personal radios. The force operates a small fleet of marked and unmarked police vehicles. All police drivers undergo the standard police driving course. There is also a marine capability with Delta99, a rigid inflatable boat (Rib), which not only provides security within the docks and cruise ship terminals, but is also used to good effect in combating marine crime in the marina, the inner harbour, and surrounding areas of the port. The boat also