An armed robber evaded police at Manchester Airport who had arrived to arrest him.
Anthony Morrison, 32, flew in from Amsterdam on 6 July, but managed to escape after entering a secure baggage area.
Officers said they had been in touch with Mr Morrison, who had agreed to be arrested upon landing over a robbery at an Asda store in Oldham in 2011.
Greater Manchester Police said he poses a risk to the public.
Detective Chief Inspector Michael Mangan, of Oldham CID, told the BBC: "I understand people will have concerns about how he managed to avoid arrest.
"He originally contacted us to say he wanted to come home and we had arranged to meet him in Manchester.
"As he was not under warrant, we could not send officers to Holland to escort him back to Britain.
"As is protocol when someone flies back of their own volition we arrange to meet them when they land.
"The fact that he managed to leave the plane and escape before he was met by officers is now under review by us.
"Morrison is clearly a dangerous man and it is imperative that we catch him as soon as possible.
"He has been violent in the past so it is vital that we warn people to be on their guard."
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