Colby, Isle of Man Colby, Isle of Man Colby () is a small village in the south of the Isle of Man in the parish of Arbory. It lies on the A7 road between the towns of Castletown and Port Erin and close to the similarly sized village of Ballabeg. The name Colby is of Scandinavian origin and is derived from Kolli's Farm which was home to the lexicographer, Archibald Cregeen (1774–1841). The word Colby is thought to derive from the Viking words Col (meaning Hill) and Byr (meaning farm). The village has a railway station on the Isle of Man Steam Railway and
Isle of Man Constabulary (NPTs). Northern NPT covers the North of the island: Ramsey, Andreas, Bride, Ballaugh, Lezayre, Maughold, Jurby. Western NPT covers Patrick, German, Michael, and Peel. Southern NPT covers the airport, Ballasalla, Castletown, Port St Mary, and Port Erin. Eastern NPT covers Braddan, Laxey, Lonan, and Onchan. Douglas NPT covers the borough of Douglas. Each NPT is controlled by an inspector who has established a partnership with the local community to help solve issues affecting the local area. A major event for the force is the annual TT races. The constabulary's headquarters are in Douglas. The present Chief Constable is Gary Roberts.