A detective who caught some of Britain's worst rapists and murderers has joined Nigel Farage's mission to clean up 'lawless Britain', the Mail can reveal.

Colin Sutton, who led the hunt for serial killer Levi Bellfield and 'Night Stalker' rapist Delroy Grant, has been appointed Reform UK's first police and crime adviser.

The former detective chief inspector will develop the party's pledge to halve crime in five years by hiring 30,000 extra police and investigating every reported offence.

Leader Mr Farage said: 'Colin Sutton will be a huge asset to Reform UK.'

In an interview with the Mail, Mr Sutton - who was played by Martin Clunes in the TV drama Manhunt, about the investigations into Bellfield and Grant - set out more of the measures he believes will clean up Britain's streets, restore public trust in police and make joining the force a more attractive career.