End-of-life notice: American Legal Ethics Library
As of March 1, 2013, the Legal Information Institute is no longer maintaining the information in the American Legal Ethics Library. It is no longer possible for us to maintain it at a level of completeness and accuracy given its staffing needs. It is very possible that we will revive it at a future time. At this point, it is in need of a complete technological renovation and reworking of the "correspondent firm" model which successfully sustained it for many years.
Many people have contributed time and effort to the project over the years, and we would like to thank them. In particular, Roger Cramton and Peter Martin not only conceived ALEL but gave much of their own labor to it. We are also grateful to Brad Wendel for his editorial contributions, to Brian Toohey and all at Jones Day for their efforts, and to all of our correspondents and contributors. Thank you.
We regret any inconvenience.
Some portions of the collection may already be severely out of date, so please be cautious in your use of this material.
Colorado Disciplinary Rules of Professional Conduct
Comment - Rule 3.3
 The advocate's task is to present the client's case with persuasive force. Performance of that duty while maintaining confidences of the client is qualified by the advocate's duty of candor to the tribunal. However, an advocate does not vouch for the evidence submitted in a cause; the tribunal is responsible for assessing its probative value.
Representations by a Lawyer
 An advocate is responsible for pleadings and other documents prepared for litigation, but is usually not required to have personal knowledge of matters asserted therein, for litigation documents ordinarily present assertions by the client, or by someone on the client's behalf, and not assertions by the lawyer. Compare Rule 3.1. However, an assertion purporting to be on the lawyer's own knowledge, as in an affidavit by the lawyer or in a statement in open court, may properly be made only when the lawyer knows the assertion is true or believes it to be true on the basis of a reasonably diligent inquiry. There are circumstances where failure to make a disclosure is the equivalent of an affirmative misrepresentation. The obligation prescribed in Rule 1.2(d) not to counsel a client to commit or assist the client in committing a fraud applies in litigation. Regarding compliance with Rule 1.2(d), see the Comment to that Rule. See also the Comment to Rule 8.4(b).
Fraudulent, deceptive, or otherwise illegal conduct by a participant in a proceeding is not consistent with fair administration of justice, and it should never be condoned by lawyers.
Misleading Legal Argument
 The complexity of law often makes it difficult for a tribunal to be fully informed unless the pertinent law is presented by the lawyers in the cause. A tribunal that is fully informed on the applicable law is better able to make a fair and accurate determination of the matter before it. The adversary system contemplates that each lawyer will present and argue the existing law in the light most favorable to the client. The advocate may urge any permissible construction of the law favorable to the lawyer's client, without regard to the lawyer's professional opinion as to the likelihood that the construction will ultimately prevail.
Legal argument based on a knowingly false representation of law constitutes dishonesty toward the tribunal. A lawyer is not required to make a disinterested exposition of the law, but must recognize the existence of pertinent legal authorities. Furthermore, as stated in paragraph (a)(3), an advocate has a duty to disclose directly adverse authority in the controlling jurisdiction which has not been disclosed by the opposing party. But having made such disclosure, the lawyer may challenge its soundness in whole or part.
A lawyer should present any admissible evidence the client desires to have presented unless the lawyer knows, or from facts within the lawyer's knowledge should know, that such testimony or evidence is false, fraudulent or perjured.
 When evidence that a lawyer knows to be false is provided by a person who is not the client, the lawyer must refuse to offer it regardless of the client's wishes.
 When false evidence is offered by the client, however, a conflict may arise between the lawyer's duty to keep the client's revelations confidential and the duty of candor to the court. Upon ascertaining that material evidence is false, the lawyer should seek to persuade the client that the evidence should not be offered or, if it has been offered, that its false character should immediately be disclosed. If the persuasion is ineffective, the lawyer must take reasonable remedial measures.
 Except in the defense of a criminal accused, the rule generally recognized is that, if necessary to rectify the situation, an advocate must disclose the existence of the client's deception to the court or to the other party. Such a disclosure can result in grave consequences to the client, including not only a sense of betrayal but also loss of the case and perhaps a prosecution for perjury. But the alternative is that the lawyer cooperate in deceiving the court, thereby subverting the truth-finding process which the adversary system is designed to implement. See Rule 1.2(d). Furthermore, unless it is clearly understood that the lawyer will act upon the duty to disclose the existence of false evidence, the client can simply reject the lawyer's advice to reveal the false evidence and insist that the lawyer keep silent. Thus the client could in effect coerce the lawyer into being a party to fraud on the court.
Perjury by a Criminal Defendant
 Whether an advocate for a criminally accused has the same duty of disclosure has been intensely debated. While it is agreed that the lawyer should seek to persuade the client to refrain from perjurious testimony, there has been dispute concerning the lawyer's duty when that persuasion fails. If the confrontation with the client occurs before trial, the lawyer ordinarily can withdraw. Withdrawal before trial may not be possible, however, either because trial is imminent, or because the confrontation with the client does not take place until the trial itself, or because no other counsel is available.
 The most difficult situation, therefore, arises in a criminal case where the accused insists on testifying when the lawyer knows that the testimony is perjurious. The lawyer's effort to rectify the situation can increase the likelihood of the client's being convicted as well as opening the possibility of a prosecution for perjury. On the other hand, if the lawyer does not exercise control over the proof, the lawyer participates, although in a merely passive way, in deception of the court.
 Three resolutions of this dilemma have been proposed. One is to permit the accused to testify by a narrative without guidance through the lawyer's questioning. This compromises both contending principles; it exempts the lawyer from the duty to disclose false evidence but subjects the client to an implicit disclosure of information imparted to counsel. Another suggested resolution, of relatively recent origin, is that the advocate be entirely excused from the duty to reveal perjury if the perjury is that of the client. This is a coherent solution but makes the advocate a knowing instrument of perjury.
 The other resolution of the dilemma is that the lawyer must reveal the client's perjury if necessary to rectify the situation. A criminal accused has a right to the assistance of an advocate, a right to testify and a right of confidential communication with counsel. However, an accused should not have a right to assistance of counsel in committing perjury. Furthermore, an advocate has an obligation, not only in professional ethics but under the law as well, to avoid implication in the commission of perjury or other falsification of evidence. See Rule 1.2(d).
 If perjured testimony or false evidence has been offered, the advocate's proper course ordinarily is to remonstrate with the client confidentially. If that fails, the advocate should seek to withdraw if that will remedy the situation. If withdrawal will not remedy the situation or is impossible, the advocate should take reasonable remedial measures.
 The general rule -- that an advocate must disclose the existence of perjury with respect to a material fact, even that of a client -- applies to defense counsel in criminal cases, as well as in other instances. However, the definition of the lawyer's ethical duty in such a situation may be qualified by constitutional provisions for due process and the right to counsel in criminal cases. In some jurisdictions these provisions have been construed to require that counsel present an accused as a witness if the accused wishes to testify, even if counsel knows the testimony will be false. The obligation of the advocate under these Rules is subordinate to such a constitutional requirement.
Duration of Obligation
 A practical time limit on the obligation to rectify the presentation of false evidence has to be established. The conclusion of the proceeding is a reasonably definite point for the termination of the obligation.
Refusing to Offer Proof Believed to Be False
 Generally speaking, a lawyer has authority to refuse to offer testimony or other proof that the lawyer believes is untrustworthy. Offering such proof may reflect adversely on the lawyer's ability to discriminate in the quality of evidence and thus impair the lawyer's effectiveness as an advocate. In criminal cases, however, a lawyer may, in some jurisdictions, be denied this authority by constitutional requirements governing the right to counsel.
Ex Parte Proceedings
 Ordinarily, an advocate has the limited responsibility of presenting one side of the matters that a tribunal should consider in reaching a decision; the conflicting position is expected to be presented by the opposing party. However, in any ex parte proceeding, such as an application for a temporary restraining order, there is no balance of presentation by opposing advocates. The object of an ex parte proceeding is nevertheless to yield a substantially just result. The judge has an affirmative responsibility to accord the absent party just consideration. The lawyer for the represented party has the correlative duty to make disclosures of material facts known to the lawyer and that the lawyer reasonably believes are necessary to an informed decision.
 Much of this Rule is substantially similar to provisions of the Code. The major difference is, of course, (a)(4), which places on the lawyer the obligation to take reasonable remedial measures in a situation where the lawyer comes to know that he or she has offered evidence that the lawyer knows to be false. (Under section (b) this obligation only continues until the end of the proceeding.) Unlike the present Code, there is no exception in this Rule from the obligation to take remedial measures for client perjury or other false evidence presented by the client. Thus even if the lawyer's knowledge of the falsity of the evidence presented is the result of privileged information, the lawyer must take reasonable remedial measures.
 A lawyer's obligation when faced with client perjury is, of course, one of the most controversial problems in professional ethics. The comments to Rule 3.3 nicely bring out the other alternative positions on client perjury. On balance the Committee felt that the position put forward in Rule 3.3, which might necessitate revealing the perjury in certain situations, represented the proper balance among a lawyer's duty to protect client confidences, a lawyer's obligation to the court and a lawyer's duty not to assist in the commission of a crime.