Why did Trudeau go public with the issue?
It has been suggested that he did so because he feared a NDP trap.
If Trudeau did nothing, and the NDP revealed that Trudeau did nothing, after he had been informed of the allegations, then Trudeau would come across as not being supportive of women.
Therefore Trudeau became the judge and handed down the sentence,
Oh, by-the-way, Trudeau will somehow have a trial later on.