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:
Funding of government services 'not sustainable'
Chief financial officer says a review of service levels is needed
Douglas Council object to DoI plans for temporary parking on Summerland site
Department is looking to have 32 spaces available to residents and visitors
Surgeon announces he's standing in General Election
Andre Risha will be seeking a seat in the constituency of Middle
'Bridging the care gap' focus of World Parkinson's Day
We hear from Parkinson's Disease Society Isle of Man