Search: Madeleine McCann book
Goncalo Amaral has vowed to appeal to Europe if he loses a legal battle over his book which claims Madeleine McCann is dead.
The former detective said his case is about "fundamental rights" for all Portuguese citizens, and pledged to keep fighting all the way to the European Court of Human Rights.
Madeleine's parents, Kate and Gerry McCann, were left facing the prospect of years of court hearings at which Mr Amaral's allegations against them will be repeated.
The couple, both 41, from Rothley, Leicestershire, flew to Lisbon this week to hear Mr Amaral attempt to overturn their ban on his book, Maddie: The Truth Of The Lie.
The ex-policeman called a series of witnesses to support his claims that Madeleine died in her family's holiday flat and that her parents faked her abduction - something they strongly deny.
Mrs McCann admitted on Thursday that sitting through the evidence is difficult, but added that nothing could be as bad as losing Madeleine.
She also insisted he couple are right to take legal action against Mr Amaral, and said she is confident they would win.
Arriving at Lisbon's main civil court for Thursday`s hearing, Mrs McCann said: "If I'm honest, our daughter's been taken and nothing's ever going to be as bad as that.
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"It's still been difficult, it's been emotive, because I know what's in the case files, I know what the conclusions are.
"So it's difficult to hear something that's incorrect and inaccurate."
