article_snippet: Police chiefs have been urged to wind up the hunt for Madeleine McCann as detectives battle the terror threat and a spate of murders.
article_snippet: Metropolitan Police was tasked with investigating the disappearance after A team of 31 British detectives family made a personal plea to David Cameron in 2011.
article_snippet: Now a senior police union leader has called for the probe to be axed and the detectives reassigned to other investigations in the UK.
article_snippet: The Metropolitan Police launched an investigation into Maddie's disappearance after Maddie parents, pictured above, made a personal plea to PM David Cameron in 2011 .
highlights_snippet: Metropolitan Police tasked with investigating by David Cameron .
  