If a lawyer in a civil case learns the client gave false testimony, does the duty of candor to the tribunal require disclosing it?

Plain-English summary

Opinion 392 (published March 2026) answers a bar member's question about how Rule 3.3(d) (candor to the tribunal) relates to Rule 1.6(d) (confidentiality) in civil cases: if a client testifies falsely, for example in a deposition, do the rules require the lawyer to disclose the false testimony to the tribunal? The Committee's answer is that it depends. Rule 3.3(d) requires a lawyer who receives information clearly establishing that a client has perpetrated a fraud on a tribunal to take reasonable remedial measures, including disclosure if necessary, but only "to the extent disclosure is permitted by Rule 1.6(d)." The Committee treats that limiting phrase as controlling.

The opinion concludes that Rule 3.3(d) does not override Rule 1.6(d); it operates within it. A lawyer may disclose confidential client information only when all of these conditions are met: the lawyer receives information clearly establishing that the client perpetrated a fraud on the tribunal; the client used or is using the lawyer's services to further that fraud; the lawyer has exhausted reasonable remedial measures short of disclosure, such as withdrawing the false evidence; and disclosure is reasonably necessary to prevent or rectify a fraud that is reasonably certain to result in substantial injury to another's financial or property interests. Even then, any disclosure must be no greater than necessary.

The Committee draws a distinction, taken from Comments 4 and 5 to Rule 3.3, between a client's spontaneous false testimony and the lawyer's knowing offer of false evidence. A spontaneous misstatement on direct or cross-examination does not by itself constitute "using" the lawyer's services to further a fraud. If, however, the lawyer knows the testimony is false and the client refuses to correct it, continued advocacy can transform otherwise passive representation into use of the lawyer's services to perpetuate the fraud. The opinion also stresses that actual knowledge of falsity is required (not mere suspicion) and that remedial measures come before any disclosure.

In practice

Under this opinion, a lawyer who learns in a civil matter that the client testified falsely is not automatically required to tell the tribunal. The opinion holds that Rule 3.3(d) incorporates the limits of Rule 1.6(d), so disclosure is permitted only after the lawyer has actual knowledge of the fraud, the client has used the lawyer's services to further it, reasonable remedial measures short of disclosure have been exhausted, and disclosure is reasonably necessary to prevent or rectify reasonably certain substantial injury to another's financial or property interests.

The opinion concludes that, where the client's spontaneous false testimony did not use the lawyer's services and the lawyer withdraws or is discharged, the lawyer should not disclose the false testimony or other confidences. If the court denies a motion to withdraw and the Rule 1.6(d) conditions are met, the opinion states that some disclosure will be required, but it must be narrowly tailored to notifying the tribunal that a specific point of testimony was false and must be corrected, not the entirety of the client's conduct.

Common questions

Q: If my client lies on the stand in a civil case, must I tell the judge?

A: Not automatically. The opinion concludes that Rule 3.3(d) requires remedial measures, including disclosure "if necessary," only "to the extent disclosure is permitted by Rule 1.6(d)," and that a client's false testimony does not by itself jettison the duty to protect the client's confidences and secrets.

Q: When does false testimony actually trigger a disclosure obligation?

A: The opinion concludes disclosure is permitted only when the lawyer has actual knowledge of the falsity, the client used or is using the lawyer's services to further the fraud, other remedial measures have failed, and disclosure is reasonably necessary to prevent or rectify substantial financial or property injury to another.

Q: Does a client's spontaneous false statement count as "using" my services?

A: The opinion concludes it does not by itself; a spontaneous misstatement on direct or cross-examination is not "using" the lawyer's services. But if the lawyer knows it is false and the client refuses to correct it, continued advocacy can become use of the lawyer's services to perpetuate the fraud.

Q: Can I withdraw instead of disclosing?

A: The opinion concludes that where the lawyer's services were not used to further the fraud, the lawyer may seek to withdraw and should not disclose; only if the court denies withdrawal and the Rule 1.6(d) conditions are met will some disclosure be required.

Q: If disclosure is required, how much do I disclose?

A: The opinion concludes the disclosure must be narrow, limited to informing the tribunal that the lawyer has information clearly establishing that a specific point of testimony (for example, the source of certain funds) was false and must be corrected.

Background and rules framework

The opinion interprets D.C. Rule of Professional Conduct 3.3(d) (candor to the tribunal) in relation to Rule 1.6(d) (confidentiality of information). Rule 3.3(d) requires a lawyer who receives information clearly establishing that a client has, in the course of the representation, perpetrated a fraud on a tribunal to promptly take reasonable remedial measures, including disclosure to the tribunal if necessary, "to the extent disclosure is permitted by Rule 1.6(d)." Rule 1.6(d) permits a lawyer to reveal client confidences and secrets only when the client has used or is using the lawyer's services to further a crime or fraud and disclosure is reasonably necessary to prevent or to mitigate or rectify substantial injury to another's financial interests or property.

The Committee notes the deliberate difference between Rule 1.6(d)'s "may reveal" and Rule 3.3(d)'s "shall promptly take reasonable remedial measures," and it relies on the Rule 1.0 definitions of "fraud" and "tribunal," on Rule 1.4(b) (a lawyer's duty to explain a matter so the client can make informed decisions), and on Rule 1.16 (the withdrawal option) in working through the analysis.

Citations and references

Rules of Professional Conduct:

• D.C. RPC 3.3(d) / Model Rule 3.3 (candor to the tribunal)
• D.C. RPC 1.6(d) / Model Rule 1.6 (confidentiality of information)
• D.C. RPC 1.16 / Model Rule 1.16 (declining or terminating representation)
• D.C. RPC 1.4(b) / Model Rule 1.4 (communication)
• D.C. RPC 1.0 / Model Rule 1.0 (terminology; definitions of "fraud" and "tribunal")

Cases:

• Sigma-Tau Industrie Farmaceutiche Riunite S.p.A. v. Lonza Ltd., 48 F. Supp. 2d 16 (D.D.C. 1999), Rule 3.3 requires proof of actual knowledge of falsity, not mere suspicion
• In re Public Defender Service, 831 A.2d 890 (D.C. 2003), crime-fraud exception forfeits privilege even without lawyer knowledge, unlike the ethical duty of candor

See also

• ABA Formal Op. 93-376: Client Lies in Discovery
• ABA Formal Op. 98-412: Disclosure When Client Violates a Court Order
• Alabama Ethics Op. 2009-01: Client Intends to Commit Perjury
• Alaska Ethics Op. 2014-2: Disclosure to the Court in a Criminal Case

Source

• Landing page: https://www.dcbar.org/for-lawyers/legal-ethics/ethics-opinions-210-present/ethics-opinion-392