Photo: Local police teams will be spread among eight smaller metropolitan districts under the changes. (ABC News: James Carmody) An internal review by WA Police has resulted in the announcement of sweeping changes to the force, including the dumping of the key Frontline 2020 model implemented by former chief Karl O'Callaghan. Police Commissioner Chris Dawson made the announcement today after ordering the internal review into the current police model less than two months ago, when he was first appointed to the top job. The changes include a doubling of the number of police districts and the introduction of a 24-hour state operations centre out of the Maylands Incident Control Centre. In a reversal of the previous model, local police teams will be spread over smaller districts after police officers raised concerns the existing four districts were too large. "I wouldn't be doing this if I didn't have confidence that the community would be safer," Mr Dawson said. "This is really driven by ensuring we have the best possible management structure, in a tighter geographic footprint … and then we can coordinate it better." Photo: Police Commissioner Chris Dawson says the changes will be made in phases. (ABC News: Emily Piesse) Mr Dawson said the changes would be introduced slowly, but significant restructuring would be implemented by next year. Metropolitan policing will now be overseen by one assistant commissioner, with commanders introduced for north and south of the city — and districts located in Perth, Midland, Mirrabooka, Joondalup, Armadale, Cannington, Fremantle and Mandurah. "We will have to work our way through this in a phased approach — this is a large, quite complex piece of work," Mr Dawson said. "I am acutely conscious that police and police staff have been through quite a significant period of change over the past four to five years. "I am setting a stretch target of July 1, 2018, in which we can make this come up out of the ground and be fully operational." No criticism of O'Callaghan's plan: Dawson The Commissioner has previously said the review made for "confronting" reading. But he stressed that assessment was not a criticism of the model his