The model in the busiest WA district splits officer roles into four: a Cannington-based control centre, detective teams in Kensington, Armadale and Cannington, urgent response teams and local police teams.
The Commissioner said local teams would be free from continuous tasking, and able to target crime hotspots and families with problems they could not presently address, such as one Perth family he said had caused 324 calls in one year.
Residents will be able to call their local team directly via mobile phone to speak about local issues, but must still use 000 for emergencies and 131 444 for attendance.
Police numbers in the district are boosted 8 per cent to ensure optimal staffing levels for the six-month trial.
Mr O’Callaghan said WA Police would be conducting changes and assessments over the next year with a view to free up enough officers to roll out the model elsewhere.