Challenging blood test results
Bullcoming v. New Mexico
In brief
The Supreme Court overturned the New Mexico Supreme Court's judgment and sent Bullcoming's case back for further proceedings.
- Where it stands
- Decided
Decided 5-4 · June 23, 2011 · Opinion by Justice Ginsburg
- What it’s about
- Donald Bullcoming challenged the use at his criminal trial of a blood-alcohol report without testimony from the person who prepared it. The Supreme Court overturned the New Mexico Supreme Court’s judgment and sent the case back (remanded).
- Who it affects
- The New Mexico Supreme Court's judgment in Bullcoming's case no longer stands; the case must continue in New Mexico.
Summary: written with AI from the case record.
What it's about
Justice Kennedy noted in his opinion that another laboratory representative testified about the lab's procedures and report, but had not recorded the test result.
Question presented
Can a blood-alcohol test admitted without the actual testimony of the person who prepared the results violate a criminal defendant's Sixth Amendment rights under the Confrontation Clause?
What the Court decided
Holding
The judgment is reversed, and the case is remanded. 147 N. M. 487, 226 P. 3d 1, reversed and remanded.
- Result
- Reversed
The Court's reasoning
Justice Sotomayor wrote separately that the report was prepared mainly as evidence for trial and agreed it should not have been admitted. She also emphasized that the Court's opinion had limited reach.
The vote
- Joined the judgment
- Concurred in a separate opinion
- Dissented
- Wrote an opinion
- Concurring · 1agreed with the result, wrote separately
- Sotomayorwrote separately
From the opinions
“Here a knowledgeable representative of the laboratory was present to testify and to explain the lab’s processes and the details of the report; but because he was not the analyst who filled out part of the form and transcribed onto it the test result from a machine printout, the Court finds a confrontation violation.”
What's next
The case returns to the New Mexico Supreme Court for further proceedings.
Documents
Opinions
Audio
Docket activity
New analysis added
AI analysis generated: Case Briefing
AI analysis generated: Decision Record
New analysis added
AI analysis generated: Impact Analysis
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AI analysis generated: Opinion Summary
Case data updated: summary, question_presented, generation_metadata
Case data updated: question_presented, extraction_metadata
Audio Recording added: Oral Arguments - Bullcoming
Opinion added: Bullcoming
Sources
Primary materials plus reporting. Best-effort analysis: this explainer relies on a mix of primary materials and trusted secondary sources. Official filings and opinions remain authoritative.