2020 CO 71
Colo.2020Background
- Victim F.C. found dead; a microcassette with voicemail messages was discovered among his belongings by his sister-in-law.
- The sister-in-law listened to the tape, identified it as phone-answering-machine messages, and gave it to police.
- A detective converted the microcassette to a digital copy, had previously interviewed Gonzales, and testified that the voicemail voice sounded consistent with Gonzales.
- Defense objected to admission of the voicemail for lack of foundation and improper expert opinion; the trial court overruled objections and admitted the recording.
- A jury convicted Gonzales of first-degree murder; Gonzales appealed arguing the recording was not properly authenticated under People v. Baca/Alonzi. The court of appeals rejected Baca’s rigid test and the Colorado Supreme Court granted certiorari to resolve the split.
- The Colorado Supreme Court held CRE 901 requires only a prima facie showing that the recording is what its proponent claims; voice identification plus surrounding testimony sufficed absent any evidence of tampering, and the voicemail was properly admitted.
Issues
| Issue | Plaintiff's Argument (Gonzales) | Defendant's Argument (People) | Held |
|---|---|---|---|
| Standard for authenticating voice recordings under CRE 901 | Authentication requires both speaker identity and proof of recording accuracy via a percipient witness or evidence of recording reliability (Alonzi/Baca approach) | CRE 901 is flexible: an opinion identifying the voice and other circumstantial testimony can meet the prima facie authentication burden; rigorous foundation unnecessary absent a colorable tampering claim | CRE 901 requires only evidence sufficient to support a finding that the recording is what the proponent claims; voice ID is sufficient absent evidence of alteration; Baca’s exclusive-method rule is overruled |
| Application to the voicemail here | Admission improper because no witness heard the call when made and no testimony established recording-process reliability | Sister-in-law established origin/context of tape and detective identified the voice as consistent with Gonzales; no evidence of tampering | Trial court did not abuse discretion admitting the voicemail; the prima facie foundation was met and authenticity was for the jury |
Key Cases Cited
- Alonzi v. People, 597 P.2d 560 (Colo. 1979) (pre-Rules case requiring detailed foundation for tape recordings)
- People v. Baca, 378 P.3d 780 (Colo. App. 2015) (applying Alonzi to require percipient witness or recording-process proof to authenticate audio)
- People v. Glover, 363 P.3d 736 (Colo. App. 2015) (discussing minimal prima facie authentication standard under CRE 901)
- United States v. Biggins, 551 F.2d 64 (5th Cir. 1977) (articulating multi-factor foundation for tape accuracy, treated as guideline)
- United States v. Westmoreland, 312 F.3d 302 (7th Cir. 2002) (rejecting rigid Biggins test in favor of Rule 901’s inclusive approach)