The hate speech trial of Wilders, collapsed in disarray when the panel of judges in the case was deemed to be biased. A retrial has since been ordered, the Guardian reported on Thursday.
The controversial politician is on trial facing five charges of inciting racial and religious hatred for his robust denunciations of Islam as fascist and demanding the Qur'an be banned.
Yesterday was the final scheduled day of the trial, with the verdict from the panel of three judges at Amsterdam district court due next week.
However, in the past 48 hours it emerged that one of the appeal court judges who ordered Wilders to stand trial and a Dutch expert on Islam, had sought to convince a Professor of Arabic studies who is a witness in the case why Wilders had to be prosecuted.
Bram Moszkowicz, Wilders's lawyer, asked to summon the witness but his request was refused. He formally protested that the judges were biased against his defendant, a complaint that was upheld by another judges' panel, which ordered a retrial with a new bench.
The highly unusual event means that it is likely to be months before a new trial can be held.
Wilders made headlines worldwide in March 2008 after making the anti-Islam film, Fitna. The movie prompted angry protests across the world.
UN Secretary General Ban Ki-moon described Wilders' movie as 'offensively anti-Islamic. The European Parliament also banned the screening of the film, saying it provoked hatred.
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