Seoul appeals court cuts ex-prime minister’s prison sentence from 23 years to 15.

A South Korean appeals court has reduced the sentence of former Prime Minister Han Duck-soo by eight years for crimes relating to ex-President Yoon Suk Yeol’s declaration of martial law.

The verdict was issued in the South Korean capital, Seoul, on Thursday.

Yoon’s decree in December 2024 briefly suspended civilian government and plunged South Korea into chaos, but it only lasted about six hours as opposition lawmakers moved quickly to overturn it in a vote.

A lower court had sentenced Han in January to a heavier-than-expected jail term of 23 years for engaging in the insurrection, as well as on related charges of perjury and falsifying an official document.

But the appeals court in Seoul cut that by eight years on Thursday, with the presiding judge announcing: “We sentence the defendant to 15 years in prison.”

The court still maintained most of Han’s convictions but lessened the penalties after taking into account his “more than 50 years as a public official prior to the martial law declaration”.

“The records also make it difficult to find evidence showing that the defendant participated more actively in the insurrection, such as by conspiring in advance or systematically leading the operation,” the judge said.

However, he said Han had “abandoned the grave responsibilities arising from the authority and position entrusted to him and instead sided with those participating in the acts of insurrection”.

Han, wearing a white shirt and a dark suit with no tie, listened to the verdict without showing much emotion.

The 76-year-old has been imprisoned since his original sentence in January.

Han had denied wrongdoing on all charges except perjury, saying in November that while he regretted not being able to stop Yoon from declaring martial law, he “never agreed to it or tried to help”.

Han is an experienced technocrat, who served in senior posts under five presidents.

He became the acting president after Yoon was impeached, before his own impeachment on accusations of having aided Yoon in the martial law declaration.

The Constitutional Court overturned Han’s impeachment, restoring his powers to serve as leader before he resigned from the post to run in a snap election in June.

He ended his bid for the presidency following rifts among conservatives.

Yoon, who faces eight separate trials, was handed a life sentence in February on charges of “masterminding an insurrection”.

Yoon, a former career prosecutor, denied the charges, arguing he had presidential authority to declare martial law and that his action was aimed at sounding the alarm over opposition parties’ obstruction of government.

He has apologised for the “frustration and hardship” brought upon the people by his martial law decree, but said in a statement after the sentencing that he stood behind the “sincerity and purpose” behind his actions.