The Government risks making it harder to catch criminals like fugitive Andrew Moran with its stance on Europe, the shadow home secretary expected to say today.
Moran, 31, from Greater Manchester, was arrested in the Spanish resort of Calpe in Alicante on Friday after being on the run for more than four years.
Yvette Cooper will tell the Police Federation annual conference that a proposal to withdraw from the European Arrest Warrant agreement plays into the hands of criminals and ties the hands of police.
Ms Cooper will say Moran, who agreed to return to the UK to face sentencing at a hearing in a Spanish court yesterday, was arrested under the "very warrant the Government wants to rip up" and "abandon".
"The Tory party's hysteria over Europe risks tying themselves in knots. More worryingly it risks playing into the hands of criminals and tying the hands of the police.
"By trying to sound tough on everything with Europe in the title, the Government will end up being soft on crime".
The Police Federation hopes the Government will to "listen to and acknowledge" issues affecting its members at this year's conference.
"We are reforming the police force to make sure it is equipped for the challenges of the future", says the Policing minister.