A translation of the trailer courtesy of Meophist on TVtropes (note "Majo" = "witch"):
Layton - Using the powers of witchcraft, she put this town into chaos. That is you!
Majo - Incorrect. I am not a witch.
Layton - Then how is it that you know the contents of a book you couldn't/haven't read?
Wright - Objection! Professor, there is a large contradiction in your reasoning.
Luke - It'll occur as the book says.
Maya - No way, it can't be.
Majo - I will probably be killed. It was written so in the book.
Wright - I won't let that happen.
Layton - Mr. Wright.
Wright - ?!
Layton - We may have made a large mis-assumption.
Layton - Those who defend the law won't necessarily always tell the truth, Luke.
Wright - I can't quite trust that guy, the one in the silk hat.