Colo. R. Prof'l. Cond. 4.4
RPC 4.4
COMMENT
[1] Responsibility to a client requires a lawyer to subordinate the interests of others to those of the client, but that responsibility does not imply that a lawyer may disregard the rights of third persons. It is impractical to catalogue all such rights, but they include legal restrictions on methods of obtaining evidence from third persons and unwarranted intrusions into privileged relationships, such as the client-lawyer relationship.
[2] Paragraph (b) recognizes that lawyers sometimes receive documents that were mistakenly sent or produced by opposing parties or their lawyers. A document is inadvertently sent when it is accidentally transmitted, such as when an e-mail or letter is misaddressed or a document or electronically stored information is accidentally included with information that was intentionally transmitted. If a lawyer knows or reasonably should know that such a document was sent inadvertently, then this Rule requires the lawyer to promptly notify the sender in order to permit that person to take protective measures. Paragraph (c) imposes an additional obligation on lawyers under limited circumstances. If a lawyer receives a document and also receives notice from the sender prior to reviewing the document that the document was inadvertently sent, the receiving lawyer must refrain from examining the document and also must abide by the sender's instructions as to the disposition of the document, unless a court otherwise orders. Whether a lawyer is required to take additional steps beyond those required by paragraphs (b) and (c) is a matter of law beyond the scope of these Rules, as is the question of whether the privileged status of a document has been waived. Similarly, this Rule does not address the legal duties of a lawyer who receives a document that the lawyer knows or reasonably should know may have been inappropriately wrongfully obtained by the sending person.
For purposes of this Rule, "document" includes, in addition to paper documents, e-mail and other forms of electronically stored information, including embedded data (commonly referred to as "metadata"), that is subject to being read or put into readable form. Metadata in electronic documents creates an obligation under this Rule only if the receiving lawyer knows or reasonably should know that the metadata was inadvertently sent to the receiving lawyer.
[3] In the circumstances of paragraph (b), some lawyers may choose to return an inadvertently sent document. Where a lawyer is not required by applicable law or paragraph (c) to do so, the decision to voluntarily return such a document is a matter of professional judgment ordinarily reserved to the lawyer. See Rules 1.2 and 1.4.
ANNOTATION Law reviews. For article, "Enforcing Civility: The Rules of Professional Conduct in Deposition Settings", see 33 Colo. Law. 75 (March 2004). For article, "Inadvertent Disclosure of Confidential or Privileged Information", see 40 Colo. Law. 65 (January 2011). Conduct violating this rule in conjunction with other disciplinary rules is sufficient to justify suspension. People v. Beecher, 224 P.3d 442 (Colo. O.P.D.J. 2009). Conduct violating this rule in conjunction with other disciplinary rules is sufficient to justify disbarment. People v. Bennett, 843 P.2d 1385 (Colo. 1993) (decided prior to 2007 repeal and readoption of the Colorado rules of professional conduct).