DR 7-102 Representing a Client Within the Bounds of the Law.

A. In his representation of a client, a lawyer shall not:

    1. File a suit, assert a position, conduct a defense, delay a trial, or take other action on behalf of his client when he know or when it is obvious that such action would serve merely to harass or maliciously injure another.
    2. Knowingly advance a claim or defense that is unwarranted under existing law, except that he may advance such claim or defense if it can be supported by good faith argument for an extension, modification, or reversal of existing law.
    3. Conceal or knowingly fail to disclose that which he is required by law to reveal.
    4. Knowingly use perjured testimony of false evidence.
    5. Knowingly make a false statement of law or fact.
    6. Participate in the creation or preservation of evidence when he knows or it is obvious that the evidence is false.
    7. Counsel or assist his client in conduct that the lawyer knows to be illegal or fraudulent.
    8. Knowingly engage in other illegal conduct or conduct contrary to a Disciplinary Rule.

B. A lawyer who receives information clearly establishing that:

    1. His client has, in the course of the representation, perpetrated a fraud upon a person or tribunal shall promptly call upon his client to rectify the same, and if his client refuses or is unable to do so, he shall reveal the fraud to the affected person or tribunal.
    2. A person other than his client has perpetrated a fraud upon a tribunal shall promptly reveal the fraud to the tribunal