Tom Whitehead and Andrew Porter report:
Britons face being spied on and pursued by foreign police officers even for the most minor offences in an European agreement the Home Office will sign up to tomorrow.
The power allows prosecutors from any EU country to demand details such as DNA or even bank and phone records on anyone they suspect of a crime.
Officers in the UK would be almost powerless to refuse the request even if they believed it was disproportionate to the alleged offence being investigated.
They could also be told to carry out investigations and live surveillance for their EU counterparts, despite already stretched resources.
Read more in the Telegraph.