The lawyer's duty not to assist witnesses, including the lawyer's own client, in offering false evidence stems from the Rules of Professional Conduct, Florida statutes,and caselaw.
Rule 4-1.2(d) prohibits the lawyer from assisting a client in conduct that the lawyer knows or reasonably should know is criminal or fraudulent.
Rule 4-3.4(b) prohibits a lawyer from fabricating evidence or assisting a witness to testify falsely.
Rule 4-8.4(a) prohibits the lawyer from violating the Rules of Professional Conduct or knowingly assisting another to do so.
Rule 4-8.4(b) prohibits a lawyer from committing a criminal act that reflects
adversely on the lawyer's honesty, trustworthiness, or fitness as a lawyer.
Rule 4-8.4(c) prohibits a lawyer from engaging in conduct involving dishonesty, fraud, deceit, or misrepresentation.
Rule 4-8.4(d) prohibits a lawyer from engaging in conduct that is prejudicial to the administration of justice.
Rule 4-1.6(b) requires a lawyer to reveal information to the extent the lawyer
reasonably believes necessary to prevent a client from committing a crime.
This rule, 4-3.3(a)(2), requires a lawyer to reveal a material fact to the tribunal when disclosure is necessary to avoid assisting a criminal or fraudulent act by the client, and 4-3.3(a)(4) prohibits a lawyer from offering false evidence and requires the lawyer to take reasonable remedial measures when false material evidence has been offered.
Rule 4-1.16 prohibits a lawyer from representing a client if the representation will result in a violation of the Rules of Professional Conduct or law and permits the lawyer to withdraw from representation if the client persists in a course of action that the lawyer reasonably believes is criminal or fraudulent or repugnant or imprudent.
Rule 4-1.16(c) recognizes that notwithstanding good cause for terminating representation of a client, a lawyer is obliged to continue representation if so ordered by a tribunal.
To permit or assist a client or other witness to testify falsely is prohibited by section 837.02, Florida Statutes (1991), which makes perjury in an official proceeding a felony, and by section 777.011, Florida Statutes (1991), which proscribes aiding, abetting, or counseling commission of a felony.
Florida caselaw prohibits lawyers from presenting false testimony or evidence.Kneale v. Williams, 30 So. 2d 284 (Fla. 1947), states that perpetration of a fraud is outside the scope of the professional duty of an attorney and no privilege attaches to communication between an attorney and a client with respect to transactions constituting the making of a false claim or the perpetration of a fraud. Dodd v. The Florida Bar, 118
So. 2d 17 (Fla. 1960), reminds us that "the courts are . . . dependent on members of the bar to . . . present the true facts of each cause . . . to enable the judge or the jury to [decide the facts] to which the law may be applied. When an attorney . . . allows false testimony . . . [the attorney] . . . makes it impossible for the scales [of justice] to balance." See The
Fla. Bar v. Agar, 394 So. 2d 405 (Fla. 1981), and The Fla. Bar v. Simons, 391 So. 2d 684 (Fla. 1980).
The United States Supreme Court in Nix v. Whiteside, 475 U.S. 157 (1986),
answered in the negative the constitutional issue of whether it is ineffective assistance of counsel for an attorney to threaten disclosure of a client's (a criminal defendant's) intention to testify falsely
.