Six major questions raised by Madeleine McCann suspect's letter - from DNA to photos

A vile letter from the prime suspect in the disappearance of Madeleine McCann has raised some questions over the case.

German prosecutors are convinced of Christian Brueckner's guilt — but he has never been charged and denies any involvement. In his latest bid to clear his name, and gloat at police, he has sent a letter to police saying "decisive questions can never be answered", according to reports.

Christian Brueckner, who is in prison for raping a 72-year-old woman in Praia da Luz in 2005, reportedly sent a letter to officers saying questions which would implicate him in the case of the three-year-old British girl, who vanished from the same resort 18 years ago, cannot be answered.

Brueckner is due to be released from jail in September if no further charges are brought. In October last year, he was cleared by a German court of unrelated sexual offences, alleged to have taken place in Portugal between 2000 and 2017.

In the note, seen and translated by The Sun newspaper, Brueckner reportedly wrote: "It is the important questions, the decisive questions that can never be answered." He went on to ask the following six questions:

• Was I or my vehicle clearly seen near the crime scene on the night of the crime?
• Is there DNA evidence of me at the crime scene?
• Are there DNA traces of the injured party in my vehicle?
• Are there other traces/DNA carriers of the injured party in my possession?
• Or photos [of the above]?
• Is there a body/corpse?

He added that the accusations against him "will not hold up and that the investigation will be dropped". The letter carried on with Brueckner claiming that the case was built on "purchased witnesses" but said he understood the German legal system well and claimed it would be unlikely for him to be locked up for her disappearance.

It comes after German and Portuguese police came together this week to search every properties and pieces of land linked to Brueckner, as his sentence is due to end in September. Investigators are said to be set on the idea that the paedophile took the three-year-old but and are desperate to prove this before he is freed - the predator has denied any involvement.

This search, the most significant since 2008, included an abandoned farmhouse surrounded by partially collapsed outbuildings. Police were spotted removing mounds of earth from the scene, which was then taken away in plastic bags for further examination. Firemen were also spotted draining an abandoned well.

Despite this, nothing related to the missing girl appeared to have been found during the operation, police however have not shared an official statement on what could have been discovered.

To date, the Metropolitan Police has spent more than £ 13million on Madeleine's case, dubbed Operation Grange

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