Advocates of evil

What is someone advocates in evil? I saw a document about some politicians case, who was accused of having sexual relationship with his secretary . There were evil lawyers who advocated it this case. even though the evidence was clear , the fact that he had intercourse with her, the lawyers still fought for his innocence. What can one thing about such despicable Behavior? What to do when one clearly does evil? We are trying to fulfill Justice , and although the Crime was flagrant the Justice was not fulfilled. what is even worse, in eyes of the whole nation the jury system failed and showed that Justice will not come to those who are just and innocent but to those who can buy better lawyers.

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