and Bedok divisions in December 2000. New NPCs were thus organised within the existing Land Divisional structure, with only minor adjustments to division borders. As a result, some Divisions are much larger than others in terms of number of NPCs under their command, with Ang Mo Kio Police Division having nine NPCs while Central Police Division has three. NPCs differ from NPPs, in that the former have boundaries broadly aligned with that of their respective Development Guide Plans (or planning areas) drawn up by the Urban Redevelopment Authority, as opposed to the later which was based on electoral divisions. NPC boundaries are permanent, while NPP boundaries may change each election should there be a review of electoral boundaries. Planning areas with higher demographies may have two NPCs, namely in Ang Mo Kio, Bedok, Bukit Merah, Jurong West and Yishun, while smaller planning areas may be combined and served by a single NPC, such as in the Central Area. Each NPC is headed by a Commanding Officer (CO), with the assistance of an Operations Officer (OO). The pool of officers in the NPC, known as neighbourhood police centre officers (NPCOs) are grouped into four Teams, each headed by a Team Leader (TL) and assisted by a Deputy Team Leader (DTL). The CO and OO are Senior police officer positions, while the TLs may be either Senior Officers or Police Officers typically of the rank of Station Inspector and above. The DTL may be any officer of the rank of Staff Sergeant and above. In 2013, it was reported that 21 NPCs have begun to use social media to get public assistance in solving crimes in their local areas. Reception The NPC system is considered to be a success, and Singapore has one of the lowest crime rates in the world. It heavily promotes the NPC system alongside for countries that are trying to adopt a system to fit in their police system. See also Crime in Singapore References Further reading Your Guide to the Neighbourhood Police Centre (1997) Public Affairs Department, Singapore Police Force. 1997 establishments in Singapore Singapore Police Force Police stations in Singapore