Kent Police employ PCSO supervisors. The South Yorkshire epaulettes have a 'bar' above the wording "Police Community Support Officer Supervisor - Traffic" with the shoulder number beneath. PCSO supervisors only supervise PCSOs and normally work under a police sergeant. Avon and Somerset Police currently utilise a PCSO Support role, which is an administration position allowing PCSOs to continue to meet the criteria; primarily subsection three of The Policing Pledge of 2009; to conduct high visibility patrols and spend at least eighty percent of their tour of duty on patrol within the community. PCSOs are a civilianised non-uniform role, who deal mainly with the administration side of the Neighbourhood Policing Team (NPT). Although not a rank in itself, most forces have an official system of putting newly trained PCSOs on their probation with a PCSO tutor. A PCSO tutor is normally an experienced PCSO, sometimes with additional training, who will patrol with the new PCSO until he or she is ready to patrol alone. Whilst being tutored like a probationary police constable the new PCSO may have a number of tasks to complete whilst on patrol and will complete such tasks whilst being mentored by the PCSO tutor. Roles in the Metropolitan Police PCSO duties can vary from force to force. Many forces may officially have different roles for PCSOs in which special training and sometimes equipment is given. Within the Metropolitan Police, which is responsible for law enforcement in Greater London, several different types of PCSO exist Safer Neighbourhoods PCSO — Provides a uniformed presence in Safer Neighbourhood Teams, which police London's boroughs and other areas within the MPS district. Safer Transport PCSO — Provides a uniformed presence on buses (policing on the railways and London Underground being provided by the British Transport Police.) Traffic PCSO — Provides a uniformed presence by assisting the Traffic OCU in roads policing, along with issuing penalty notices. Counter Terrorism PCSO (known prior to 2010 as a Security PCSO) provide a uniformed presence in well known areas in London, safeguarding against terrorism. Royal Parks PCSO — Provides a uniformed presence within the Royal Parks in the MPS District. Aviation Security PCSO — Provides a uniformed presence, assisting the Aviation Security OCU in policing of London airports. Station PCSO — Acts as front counter liaison with members of the public. Victim PCSO — Responsible for updating victims of crime about police investigations. Safer Schools PCSO