EU policing powers – who needs another special relationship?

According to The Times last Saturday, the Prime Minister intends to hand over some policing powers to the EU.
This is the Prime Minister who could do nothing for a number of individuals who have been extradited to the US under a treaty that politicians have now condemned. Have we lost the confidence to police ourselves? Are we no longer capable of policing ourselves? Do we no longer trust ourselves sufficiently to police ourselves? Robert Peel must be turning in his grave.