Police dropped from 148 in 2000/2001 to 18 in 2010/2011. By 2017 the average number of arrests per year was only just over 10. Primary duties include: Patrolling parks, commons, and open spaces within the Borough. Enforcing byelaws, dog control orders, and other park regulations. Parking, cycling, and public nuisance offences. Policing special events, particularly in Battersea Park. Additional areas of responsibility for constables, include: Key holding and response to building alarms by day and night, including the search of premises with police dogs when alarms are activated. On site security and protection of Council staff, particularly in the Town Hall. Serving legal documentation on behalf of the Council and the Courts. Working together with other Council departments, the Metropolitan Police Service and the other emergency services in emergency management and civil defence. Headquarters The headquarters of the Police Service is located in Battersea Park, and includes both the Inspector's office, and the modern operations and control centre. The headquarters is also home to administrative staff and Home Office qualified instructors. Uniform According to a Freedom of Information enquiry in June 2017, each Wandsworth Parks and Events constable was at that time issued with operational uniform and equipment to a total value of just over £1,777. The operational uniform consists of a police polo top, black trousers, black fleece jacket, high-visibility jacket, peaked cap, Magnum boots, gloves, body armour (stab vest), and an equipment-carrying police vest with handcuffs, a video camera, and a Motorola personal radio. Officers also carry a baton. The vests bear rank markings and collar numbers, on black rank slides, as well as an identifying patch with the Parks and Events Police badge and name. There is also a formal uniform for official occasions consisting of a white shirt, black tie, dark blue or black tunic, and black trousers. Medal ribbons, if awarded, as well as rank markings (if any) are worn on the tunic. Equipment and batons Parks and Events constables carry batons and handcuffs, when in uniform. Additionally they carry body worn video cameras, and personal Motorola radios. The powers of parks constables to carry batons was questioned by the Guardian newspaper in 2007, and in that year the trade union UNISON advised its members not to carry them. Batons continued to be issued, and are routinely carried by all officers. The Constables of Wandsworth Parks Police were trained to Home Office standard to carry