Nowhere in the world when a young child disappears from her home (in this case a rented flat) are the close family immediately discarded without a very thorough check.
The McCann avoided being checked from day one. Mrs McCann, according to the newspapers, even stated that she was ready to take a polygraph test, which was made available to her at no cost by an expert, and when such offered was made she discarded it.
They avoided any situation that could clarify their position as potential suspects, namelly by escaping to Spain in the day the police had warned them they would be going to the Villa to take the clothes and car for the EVDR dogs to search.
They flew off Portugal as soon as they were nominated arguidos, instead of taking advantage of that situation to require further investigations.
They still argue they have been cleared by the Portuguese Attorney General, when they know that it isn't true.
They attempted to get files from the Leicestershire police, using the special status they put their missing daughter into - renouncing their parental rights to a Court of Law - without success.
The Leicestershire Police should be called to explain why they didn't find it important to keep the search for Madeleine, in Portugal after September 10th, 2007.