'violate the human rights of others', is impractical and fraught with grave consequences as it puts an almost impossible burden on the lawyer of pre-judging guilt; and (more important) it precludes the person charged with infringing the human rights of another (such as one accused of murder) the right to be defended by a 'lawyer of his choice - in my country, a guaranteed constitutional right.
On his view on representing lawyers as human rights activists on accepting briefs of clients - Fali S. Nariman, 'Before Memory Fades: An Autobiography