Formerly the deputy chief, 49 year old Gary Roberts becomes the first Island officer to take the helm.
Mr Roberts started as a constable in Douglas 28 years ago and rose through the ranks.
His predecessor Mike Langdon fostered a neighbourhood policing approach which has seen crime in the Island fall to the lowest level of any British Isles police force.
Chief Constable Roberts is committed to sustaining that policy - if funds allow:
College outlined 'fragile' financial position in letter to enterprise minister
King William's College received £2.25m loan in 2025
'Stay cautious' after global disruption to Microsoft
OCSIA advice to Island residents
Tiny percentage of government buildings have solar panels
Earlier this year Manx Utilities was granted approval for 1,200 panels (735kW) on the NSC
Douglas East candidate says integrity of whole election has been cast into doubt'
Dave Mackey backs calls for a full recount of September's vote