Portuguese investigators headed to England to question Madeleine McCann's parents just hours after the couple announced they have "perfectly innocent" explanations for how their missing daughter's DNA wound up in the trunk of their rental car. The detectives are expected to hand a list of 40 questions to British police, but probably won't be allowed to be present during the interrogation.
The investigative team bears a formal letter requesting assistance from the Portuguese judge reviewing evidence in the case. Gerry and Kate McCann say Maddy's DNA was probably transferred to the trunk when they tossed unpacked belongings into the car while switching lodgings after her disappearance. Evidence of the girl's DNA in the spare tire well has raised questions about their explanation.