Interesting enough

Whether white-collar defendants are innocent can never truly be known because these crimes are not susceptible to the type of proof that would definitively exonerate a person, making it almost impossible for there to be any Perry Mason moments of vindication. There is no DNA that can establish conclusively what was in a defendant’s mind at the time the conduct took place, so professions of innocence based on a lack of intent can never be proved — or disproved.

https://www.nytimes.com/2017/03/20/business/dealbook/insider-trading-cases-proof.html?rref=collection%2Fcolumn%2Fwhite-collar-watch&action=click&contentCollection=business&region=stream&module=stream_unit&version=latest&contentPlacement=1&pgtype=collection