Is It Legal to Record Someone in Colorado? What One-Party Consent Allows

01The basic rule

Colorado Is a One-Party Consent State

The short answer to whether you can record someone in Colorado depends on one question: are you part of the conversation? Under C.R.S. § 18-9-304, eavesdropping is committed by a person not visibly present during a conversation who knowingly overhears or records it without the consent of at least one of the principal parties. If you are one of those parties and you consent to your own recording, the statute's core prohibition generally does not reach you, a point also covered in our summary of what Colorado investigators may do.

That makes Colorado more permissive than states that require every participant's agreement. A tenant may usually record a landlord's verbal promise, an employee may record a meeting they attend, and a person receiving threats may record the caller. Your attorney should still confirm how the rule applies to your facts, because the statute also reaches recording for an unlawful purpose and disclosing what was unlawfully captured. Our Colorado investigations overview explains how Delator applies these rules in the field.

The rule cuts the other way just as clearly. Someone who is not present and has no participant's consent commits a crime by recording, whatever their reason. Suspecting a spouse of an affair, worrying about a child or wanting leverage in a dispute does not change that. We explain lawful alternatives on our non-married infidelity investigations page and elsewhere on this site.

• Participants can generally record their own conversations
• Outsiders need at least one party's consent
• Eavesdropping is a class 2 misdemeanor

02Calls, texts and messages

Wiretapping Covers Phone Calls and Electronic Communications

Phone calls fall under a separate statute. C.R.S. § 18-9-303 applies to a person who is not a sender or intended receiver of a telephone, telegraph or electronic communication and who knowingly overhears, reads, takes, copies or records it without the consent of a sender or receiver. The statute also covers intercepting communications to commit an unlawful act, using or disclosing contents obtained that way, tapping lines and installing interception devices. All of these are class 2 misdemeanors.

In practice, a person on the call may generally record it. A parent who quietly installs an app that copies a teenager's messages, or a spouse who forwards a partner's texts to their own phone, raises much harder questions, because neither is the sender or intended receiver of those messages. Electronic communications include more than voice calls, so reading or copying someone else's messages without consent can be risky even when no audio is involved. If the problem is abusive messages you receive, see our cyberbullying investigations.

Spyware is the clearest example of what not to do. Installing software that intercepts another person's calls or messages can fall within the device-installation language of § 18-9-303, regardless of who owns the phone plan. If you think someone has done this to you, Delator can document what you are seeing and refer you to counsel; our stalking investigations in Colorado explain how.

03Rooms, cars and homes

Hidden Recorders and the Visibly Present Test

For face-to-face conversations, the eavesdropping statute turns on whether the person recording is visibly present. Someone sitting at the table who records the discussion is present and is a party. A voice recorder taped under the same table, left there while the owner is elsewhere, is not present at all, and unless one of the people talking consented, the recording can be eavesdropping under § 18-9-304.

This is where many family disputes go wrong. A recorder hidden in a shared car, a phone left recording in the bedroom, or a baby monitor repurposed to capture adult conversations can all expose the person who placed them. Courts hearing divorce and allocation of parental responsibilities cases may also look poorly on a parent who secretly recorded the other. Our guide to Colorado parenting-time investigations describes evidence that judges find more useful.

The safer route is lawful observation. A professional investigator can document where someone goes and whom they meet from public places, without recording any private conversation. That evidence is often more persuasive than a muffled audio clip, and it does not carry criminal risk. See how that works on our married infidelity investigations page.

04Statutory exceptions

When Colorado Allows Recording Without a Party's Consent

C.R.S. § 18-9-305 lists a few situations that are treated as affirmative defenses. They include news coverage of a public and newsworthy event, surveillance devices on a person's own premises for security or business purposes when the public has reasonable notice, normal telecommunications operations, good-faith reliance on a court order, and publicly accessible radio. They are narrow, and none of them is a general permission to record whoever you like. Businesses unsure where they stand can start with a Colorado compliance audit.

The premises exception matters most to businesses. A store, warehouse or office may run security cameras, but the protection rests on reasonable notice, which is why posted signs are common. Audio recording raises sharper questions than silent video, because conversations are what the eavesdropping statute protects. Employers planning monitoring should read our workplace surveillance in Colorado page and talk with employment counsel first.

Homeowners ask about doorbell and porch cameras. A camera covering your own entrance is a common security use, but audio that captures conversations on the sidewalk or a neighbor's yard is less certain under the statute's notice language, and your attorney should weigh in. When a business needs a broader review of cameras, alarms and policy, our risk audits in Colorado look at monitoring as part of the whole plan.

• News coverage of public events
• Own-premises security with reasonable public notice
• Telecom operations and court orders
• Publicly accessible radio

05Beyond audio

Video, Photography and Tracking Follow Other Laws

The eavesdropping and wiretapping statutes are about conversations and communications. Silent video of what anyone could see from a public place generally falls outside them, which is why professional surveillance relies on cameras rather than microphones. Video can still be unlawful in other ways. Cameras placed where people expect privacy, such as bathrooms and bedrooms, raise separate criminal issues, and Delator never records inside private spaces.

Repeated recording can also become part of a stalking case. Colorado's stalking statute, § 18-3-602, includes placing a person under surveillance among the conduct it reaches when combined with a credible threat or serious emotional distress. Following someone with a camera to frighten them is not lawful documentation. Our Colorado surveillance investigations are built around distance, no contact and a time-stamped log.

GPS devices are a related question. No Colorado statute we found targets trackers directly, but covert tracking can be treated as surveillance under the stalking law, and evidence from a device on a vehicle you have no right to may be challenged. Delator will not install a tracker on a vehicle its client has no lawful right to. If your own car may be tracked, our evasive person skip tracing team can explain lawful options.

06Calls across state lines

Interstate Calls, Federal Law and All-Party States

Colorado's rule governs recordings made under Colorado law, but a call has two ends. If the other person is in a state that requires the consent of every party, that state's law may also matter, and courts do not always agree on which law applies. When a call crosses state lines, the cautious course is to tell the other person you are recording, or to ask an attorney first. Couples living apart can read our out-of-state infidelity investigations page for lawful alternatives.

Federal law generally also permits a participant to record a call, but federal rules have their own conditions and exceptions, and they do not override stricter state laws. Colorado borders seven states, and Delator also works in neighboring Wyoming, so calls and meetings that cross borders come up often. We check the rules for each location before any recorded interview.

For investigators, the practical answer is consent. Delator normally asks permission before recording a witness interview, even where one-party consent would allow a silent recording, because a recording the witness agreed to is harder to attack later. Attorneys planning interviews can coordinate the approach through our Colorado attorney support services.

07Evidence

Using a Recording in a Colorado Case

A lawful recording still has to be admitted. Your attorney will need to show who is speaking, when and where it was made, and that it has not been edited. Keep the original file, note the date and device, and avoid trimming or enhancing it yourself. In workplace disputes, recordings often support claims that are later investigated more fully; our workplace sexual harassment investigations gather corroborating witness accounts.

An unlawful recording can create more problems than it solves. The wiretapping and eavesdropping statutes reach not only making the recording but also using or disclosing contents obtained unlawfully, so playing it for others or filing it can compound the issue. In a divorce, a recording made in violation of the statute may hand the other side an argument about your conduct. Read our guide to hidden assets in a Colorado divorce for evidence that tends to matter more in property disputes.

When you are unsure, stop and ask before you record or share anything. Delator can review what you have, suggest lawful ways to corroborate it, and work under your attorney's direction. Employees who believe a recording shows unlawful firing can also review our wrongful termination investigations.

Services

Lawful Alternatives to Secret Recording

• Surveillance investigationsVideo and photographs from public places, logged with time stamps, that document conduct without capturing any private conversation in Colorado.Learn more
• Infidelity investigationsDiscreet documentation of a suspected affair without hidden recorders, spyware or tracking devices, written so your lawyer can use the findings.Learn more
• Stalking investigationsHelp for people being followed, recorded or tracked, including documentation that supports a protection order or a report to police.Learn more
• Cyberbullying investigationsIdentifying the people behind harassing messages and accounts through lawful methods, preserving evidence for counsel, schools or law enforcement.Learn more
• Workplace investigationsInterviews and records review for Colorado employers facing misconduct complaints, with recording handled through consent and written notice.Learn more
• Harassment investigationsWitness interviews and corroboration for workplace sexual harassment complaints, so a claim does not rest on a single disputed recording.Learn more
• Attorney litigation supportConsensual recorded interviews, witness locates and court-ready reports directed by counsel, with a $1,000 minimum for civil litigation support.Learn more
• Child custody investigationsLawful documentation for parenting-time disputes that focuses on the child's safety rather than secret recordings of the other parent.Learn more
• Investigative consultingA review of recordings and evidence you already have, with advice on lawful corroboration before anything is shared or filed with a court.Learn more

How it works

Before You Record, Work Through These Steps

1. 01

   Confirm you are a party

   Ask whether you are actually part of the conversation or, failing that, whether one participant has clearly consented to the recording before anything is captured.

2. 02

   Check the other locations

   If anyone on the call is in another state, find out whether that state requires every party's consent, and tell the other person when in doubt.

3. 03

   Preserve the original

   Keep the unedited file, note the date, time and device, and avoid trimming or enhancing it, because authentication depends on an untouched original.

4. 04

   Ask counsel before sharing

   Talk with your attorney before playing, posting or filing a recording, since using or disclosing unlawfully obtained contents can be an offense itself.

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Colorado Recording Situations at a Glance

Statewide coverage

Colorado's Recording Rules Apply Statewide

The eavesdropping and wiretapping statutes apply in every Colorado county, from downtown Denver to the San Luis Valley. Clients in the north metro can start with our Arvada private investigators, while Boulder and Weld County residents often begin with Longmont investigations. South metro clients can see our Centennial investigators, and El Paso County matters run through the Colorado Springs investigator page. In each place, Delator explains the recording rules before any interview or surveillance begins and puts the method in writing.

• Denver
• Colorado Springs
• Arvada
• Longmont
• Centennial
• Fort Collins
• All of Colorado

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