Another strange theory has emerged from Netflix's recent Madeleine McCann documentary, with one police officer exploring the suggestion that the missing girl was killed, with the perpetrator storing her body in a freezer for 25 days.
The outlandish claim has circulating on the Internet for years thanks to conspiracy theory groups, and is based on some quite sketchy evidence that involves the use of sniffer dogs.
Officer Goncalo Amaral was removed from the case after 6 months. Credit: Netflix
In the documentary, The Disappearance of Madeleine McCann, we see trained dogs supposedly sniffing out the scent of blood and 'cadavers', which they indicate to have found in the boot of a rental car hired by Gerry and Kate McCann 25 days after their daughter went missing.
The dogs give the same response in the apartment where Maddie was sleeping at the time of her disappearance.
However, even by the admission of the owners and trainers, the dogs are only used as a way to find leads for detectives to chase up actual forensics, and should not be used as physical evidence in any investigation.
There was also DNA found in the back of the car - but as the documentary and other detectives confirm, this cannot be taken as evidence as it is less than 80 percent certain to be a match to Maddy's.
According to the McCanns, Maddie and her twin siblings were asleep in their hotel room on the night they went missing, while the parents dined out with their friends in a nearby tapas restaurant. Reportedly, they went to check on the kids 'every 20 minutes to half an hour', according to the documentary, but when Kate went to check on them at around 10pm, Maddy was gone.
The officer in question, Portuguese cop Gonçalo Amaral, has actually implicated the parents as suspects for much of the investigation.
Theories have been circulating for years. Credit: PA
Although the sniffer dog and DNA evidence were widely discredited, Amaral told producers of the Netflix documentary: "Talking about the DNA traces found in the car, let me tell you this. It's important to recognise it as a indication of the possibility that something was transported there.
"The body may have been hidden in some sort of freezer somewhere and been transported later in the boot of the car and bodily fluids may have dropped from the corpse.
"The freezer hypothesis originates from the circumstances. The car was rented many days after the disappearance and the possible death of the child.
"As to what happened to the body before that, whether it was decomposed, if it was buried, frozen, probably the most correct conclusion is that it was kept in a place where it could be preserved in the cold."
Amaral was removed from the case just six months after Madeleine went missing due to a series of failures.
Featured Image Credit: PA