Surgeons work 'miracle' after Vic cop raid

More details have emerged of a bungled police arrest which will likely leave a Melbourne man with a permanent disability and has sparked intense scrutiny of the officer's actions.

Nik Dimopoulos remained in hospital on Tuesday after extensive surgery to repair serious injuries sustained to his arm when officers raided a Fitzroy property overnight Friday in pursuit of a carjacker.

"Nik was in bed upstairs," friend and state MP Fiona Patten told 3AW radio.

"Talk, flashlights, stomping big boots coming up, no one said 'police' at any time and so Nik fled thinking it was some type of homophobic attack.

"Police chased him down and tackled him."

Ms Patten visited Mr Dimopoulos in hospital on Monday.

"He's lucky. He nearly lost his arm. He was just very lucky we have some brilliant surgeons at St Vincent's Hospital that really worked miracles because he had no shoulder when he arrived at St Vincent's. It was petty awful," she said.

"He's going to make a recovery but probably not a full recovery. He will probably have a permanent disability."

Mr Dimopoulos was arrested outside the Hares and Hyenas gay bookshop after officers mistook him for the carjacker.

Police apologised for the botched raid and say it was in no way targeted at the gay community.

Victoria's corruption watchdog will investigate.

"(It's) very clear to us that police stuffed this one up," Assistant Commissioner Luke Cornelius said.