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When double jeopardy begins

Martinez v. Illinois

Updated Oct 18, 2026

In brief

The Supreme Court overturned the state court's ruling and said Illinois could not retry Martinez after the jury was sworn and the trial judge found the state's evidence insufficient.

Where it stands
Decided

Decided · May 27, 2014 · Per curiam

What it’s about
After the jury was sworn, Illinois presented no evidence, and the trial judge entered a not-guilty verdict for Esteban Martinez.
Who it affects
Illinois cannot retry Martinez on those charges because the trial judge found the state's evidence insufficient to convict.

Summary: written with AI from the case record.

Illustration for Esteban Martinez v. Illinois
Conceptual illustration · AI-generated

What it's about

The Supreme Court overturned the Illinois Supreme Court and sent the case back (remanded), ruling that the jury’s oath triggered protection against a second trial and Martinez could not be tried again.

Illinois had repeatedly postponed Martinez's trial because it could not locate two witnesses. When they did not appear on May 17, 2010, the state declined to present evidence.

Illinois appealed the not-guilty verdict, arguing that the trial judge should have granted its request for more time.

Question presented

Does jeopardy attach when the jury is empaneled and sworn if the State does not participate in the trial?

What the Court decided

Holding

The judg ment of the Supreme Court of Illinois is reversed, and the case is remanded for further proceedings not inconsistent with this opinion.

Result
Reversed

The Court's reasoning

The Court said protection against a second trial begins when a jury is selected and sworn. Because the trial judge found the state's evidence insufficient to support a conviction, Martinez could not be tried again.

The vote

Majority author
Per Curiam

What's next

The case returns to the Illinois courts for further proceedings consistent with the Supreme Court's opinion.

Documents

1

Docket activity

6
  • New analysis added

    Oct 18, 2026 · Court records

  • AI analysis generated: Case Briefing

    Oct 18, 2026 · Generated

  • AI analysis generated: Decision Record

    Oct 18, 2026 · Generated

  • Case data updated: summary, question_presented, generation_metadata

    Oct 18, 2026 · Court records

  • Case data updated: question_presented, extraction_metadata

    Oct 17, 2026 · Court records

Show 1 more
  • Opinion added: Martinez

    May 27, 2014 · Court records

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.

Checked Oct 18, 2026Methodology

Court records and filings

Reporting and analysis