British detectives are hoping a new appeal to find Madeleine McCann will help them track down a man they want to speak to.

Police say the timeline of events around the three year old's disappearance in 2007 has 'significantly changed'.

A new Crimewatch appeal's to be broadcast on BBC on Monday.

Graham Roberts lives where she went missing in Praia da Luz in Portugal and says local residents don't understand the interest: