Madeleine McCann's father will challenge ministers today to ensure a new system of press regulation is backed by law.

Gerry McCann, who was paid damages by several newspapers over reporting of the case of his missing daughter, will say he and his wife Kate "had the misfortune to suffer from everything the press could throw at us".

McCann, whose three-year-old daughter vanished from a Portuguese holiday apartment in May 2007, will add: "The reason we subsequently agreed to the ordeal of giving evidence to the Leveson Inquiry was that we don't want anyone else to have to go through what we went through.