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:
First cruise call of the season leaves Isle of Man without stopping
MV Hamburg approached the Island but has headed for Liverpool
Planning approval wanted for padel courts at Noble's Park
Local group wants four courts on the former tennis site
Minister confirms immigration healthcare surcharge has been delayed
£1,000+ charge won't be brought in before end of administration
Old Police Station in Castletown to be sold by Manx National Heritage
Tynwald approves motion after debate over upkeep and protections