Oh Dong-woon [ ko ]. Yoon had confined himself at his official presidential residence since his impeachment on 14 December The arrest warrant , granted on 31 December by the Seoul Western District Court, stemmed from investigations into Yoon's martial law declaration on 3 December , as well as his refusal to attend any of the three summons demanded by the Corruption Investigation Office for High-ranking Officials CIO.
On 15 January , after an infiltration of his residence, Yoon handed himself over to the CIO, ending the arrest effort. The initial and unsuccessful arrest operation on 3 January resulted in a complex security standoff at his presidential residence in Hannam-dong , Yongsan, Seoul, involving multiple security forces and lasting several hours.
After roughly six hours of confrontation at Yoon's residence, the CIO suspended their operations, citing safety concerns for personnel. The arrest warrant and raid marked the first arrest of a sitting president in the nation's history. In his declaration, Yoon accused the Democratic Party DPK , which has a majority in the National Assembly , of conducting "anti-state activities" and collaborating with "North Korean communists" to destroy the country, thereby creating a "legislative dictatorship".
The order prohibited political activities, including gatherings of the National Assembly and local legislatures, and suspended the free press. Military and police forces attempted to prevent legislators from entering the National Assembly Proceeding Hall , causing clashes between the security forces, protesters, and legislative aides. All legislators who were present in the chamber unanimously voted to demand the lifting of martial law, forcing Yoon to lift martial law around am KST on 4 December.
As a result, Yoon was impeached on 14 December by the National Assembly and suspended from office pending a final ruling by the Constitutional Court on whether to confirm his removal from the presidency. On 11 December , South Korean police raided the Office of the President of the Republic of Korea , with investigators presenting a search warrant specifying Yoon as the suspect.
