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Colorado Bar Association Ethics Opinions

Free plain-English summaries of legal ethics opinions issued by the Colorado Bar Association, with full citations and source links on every page.

89 opinions · Updated June 27, 2026
8 opinions Government Lawyers

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Can a Colorado lawyer advise or supervise investigators, clients, or police who use deception in a lawful investigation, and can the lawyer do it personally?

The opinion concludes that amended Rule 8.4(c) lets a lawyer advise, direct, or supervise others, including clients, police, and investigators, who use dishonesty or deceit in lawful investigative act…

May 18, 2019

When a government agency is represented by counsel, can a Colorado lawyer contact its officials or employees directly, or does Rule 4.2's no-contact rule apply?

The opinion concludes that Rule 4.2's ban on contacting a represented organization applies to government bodies, so a lawyer generally may not contact officials who supervise or can bind the agency on…

2016

What matters can a lawyer who serves part-time as a county or municipal judge represent clients in, and does the conflict extend to the lawyer's firm?

The opinion concluded that a part-time judge may not represent a client in any matter likely to come, or that has come, before the judge or derived from such a matter; a part-time county judge may not…

June 16, 1984

When a law-firm member takes a judicial or public office that keeps the lawyer from practicing, can the firm keep the lawyer's name in its firm name and on its letterhead?

The opinion concluded that when a firm member takes a judicial, legislative, or public executive or administrative office for a substantial period during which the lawyer is not actively and regularly…

April 28, 1973

Can a lawyer who serves as counsel to a public body, like a county or special district, represent private clients in matters before that body?

The opinion concluded that a lawyer who represents a governmental body has the responsibilities of a public official and may not represent a client in a matter before that body that creates a conflict…

June 3, 1972

Can a lawyer who serves as a municipal attorney also defend criminal defendants in that municipality's court or in cases involving the municipality?

The opinion concluded that a lawyer employed as a municipal attorney may not represent a defendant prosecuted in that municipal court; the lawyer may, with proper consent, defend in a non-municipal co…

February 20, 1971

Can an attorney who sits on a city council represent defendants charged with city-ordinance violations in that city's municipal court?

The opinion concluded that it is improper for an attorney who is also a city councilman to appear for defendants prosecuted for city-ordinance violations in the municipal court, because the council co…

March 26, 1960

Can a municipal judge and the city attorney who appears before that judge share the same suite of law offices for their private practices?

The opinion concluded that it is improper for a municipal judge and a city attorney to engage in private law practice in the same suite of offices, because the arrangement implies the city attorney ca…

March 26, 1960

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Legal ethics opinions from the Colorado Bar Association interpret the rules of professional conduct for working lawyers, in response to inquiries from members and committees. They are not binding like court discipline decisions, but courts and discipline boards treat formal opinions as substantial guidance on how the rules apply. Every opinion above has a plain-English question and short answer, plus a link to the original source on the bar's site.

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