Court case

How the Yoon Suk Yeol martial law case unfolded

Prosecutors charged Yoon as the ringleader of an insurrection, alleging that he declared unlawful emergency martial law, mobilised the military and police to blockade the National Assembly and attempted to detain political figures and election commission staff. The special prosecutors sought the death penalty at first instance and again on appeal.

3 December 2024 to today · 10 dated events · 13 sources
Where it stands now · as of 30 October 2026

As of 30 October 2026 Yoon is in custody, the special prosecutors have again sought the death penalty in his insurrection appeal at the Seoul High Court, defence closings and his final statement are scheduled for early November 2026, and his seven-year obstruction sentence is final.

2024
3 Dec 2024
Legal step

Yoon declares emergency martial law, which is lifted after the National Assembly votes against it

14 Dec 2024
Legal step

National Assembly impeaches Yoon

2025
15 Jan 2025
Legal step

Yoon is arrested, the first sitting president to be arrested

26 Jan 2025
Filing

Prosecutors indict Yoon for insurrection

Indictment with detention (as reported by Al Jazeera). Yoon was indicted as ringleader of an insurrection over the martial law decree. He had been in custody since 15 January 2025.

4 Apr 2025
Turning point
Ruling

Constitutional Court upholds the impeachment 8 to 0 and removes him from office

Decision on the impeachment of the President (as reported by Asia Economy and The Korea Times). The court upheld the impeachment 8 to 0 and removed Yoon from office, finding that the declaration ignored the constitutional governance structure and infringed fundamental rights and that no emergency justifying martial law had occurred.

2026
19 Feb 2026
Ruling

Seoul Central District Court sentences him to life imprisonment for leading an insurrection

First-instance judgment in the insurrection case (as reported by CBS News). Found Yoon guilty of leading an insurrection and sentenced him to life imprisonment, finding it established that he intended to obstruct or paralyse the National Assembly. Prosecutors had sought death.

12 Jun 2026
Ruling

Seoul Central District Court sentences him to 30 years in the drone infiltration case

First-instance judgment in the drone infiltration case (as reported by Yonhap via The Korea Times). Convicted Yoon of benefiting the enemy and abuse of power, finding that he ordered drone flights into North Korea in October 2024 to create a pretext for martial law, and sentenced him to 30 years. His lawyers argued it was a legitimate military operation and appealed the same day.

9 Jul 2026
Turning point
Ruling

Supreme Court upholds the seven-year sentence in the obstruction case

Final ruling in the obstruction case (as reported by The Korea Herald). Upheld a seven-year sentence on charges including obstructing the execution of an arrest warrant and violating Cabinet members' right to deliberate. The Seoul High Court had raised the first-instance five years to seven in April 2026.

29 Oct 2026
Legal step

Special prosecutors again seek the death penalty in final arguments at the Seoul High Court

Closing hearing of the prosecution in the insurrection appeal (as reported by Yonhap via The Korea Herald and by The Fact). The special counsel team again asked for the death penalty, arguing the life sentence was too lenient. The court said it would hold two further hearings, with Yoon's final statement due the following week, before setting a sentencing date.

Sources

13 records, ranked by type
  1. 1News report26 Jan 2025
    South Korea prosecutors indict impeached President Yoon for insurrection
    Al Jazeera · aljazeera.com
  2. 2News report4 Apr 2025
    All Justices Unanimously Decide to Remove President Yoon from Office
    Asia Economy · asiae.co.kr
  3. 3News report4 Apr 2025
    S. Korea's President Yoon Suk Yeol impeached
    The Korea Times · koreatimes.co.kr
  4. 4News report4 Apr 2025
    Korean President Yoon Suk Yeol 'regretful' after ousting from office
    Korea JoongAng Daily · koreajoongangdaily.com
  5. 5News report19 Feb 2026
    Former South Korean President Yoon sentenced to life for martial law
    CBS News · cbsnews.com
  6. 6News report25 Jun 2026
    Yoon insurrection appeal trial resumes at Seoul High Court
    The Financial News (Korea) · en.fnnews.com
  7. 7News report15 Oct 2026
    Yoon's insurrection appeal could see verdict by year's end
    The Korea Herald · mbiz.heraldcorp.com
  8. 8News report9 Jul 2026
    First top-court ruling in Yoon's martial law-related criminal cases comes 583 days after failed declaration
    The Korea Herald · koreaherald.com
  9. 9News report4 Apr 2025
    Constitutional Court upholds South Korean president's impeachment
    The Diplomat · thediplomat.com
  10. 10News report12 Jun 2026
    Ex-President Yoon sentenced to 30 years in prison in drone infiltration case (Yonhap)
    The Korea Times · koreatimes.co.kr
  11. 11News report29 Oct 2026
    Special counsel again seeks death penalty for ex-President Yoon over martial law declaration (Yonhap)
    The Korea Herald · koreaherald.com
  12. 12News report29 Oct 2026
    '내란 우두머리' 윤석열 2심 종착역…특검, 1심은 사형 구형
    The Fact · news.tf.co.kr
  13. 13News report25 Jun 2026
    Special counsel again seeks death penalty for ex-President Yoon on insurrection charges (Yonhap)
    The Korea Times · koreatimes.co.kr

Last updated 30 October 2026. Spotted an error? See corrections. Every event links to the record it comes from. Allegations are attributed to whoever made them.