They shouldn’t “search for the truth” in court until they actually have a case. They should search for some proof first.
When allegtations are made that the constitution has been violated, the suspected fraud should produce the records he is avoiding showing. Then the judge will determine if there is a case. To do so beforehand is to allow the suspect to get away without reviewing the “best evidence;” something a judge may eventually stand up for or perhaps history, or the court of public opinion, or an insider tiring of covering up the fraud. There are many ways the truth may be revealed.