Yoon's lawyer, Yun Gap-geun, expressed fears over potential security risks, citing efforts by the Corruption Investigation Office for High-ranking Officials (CIO) and the National Office of Investigation (NOI) to arrest the impeached president.
Yoon's legal team emphasized that the president would only attend the trial once these safety issues are addressed.
The constitutional court is set to begin hearings on January 14, with additional sessions planned for January 16, 21, 23, and February 4.
The impeachment motion, passed by the National Assembly on December 14, 2024, suspended Yoon's presidential powers for up to 180 days while the court deliberates.
Yoon, who faces charges related to insurrection, declared martial law on December 3, which was overturned by the assembly.
Despite a failed attempt to arrest him on January 3, a Seoul court has since extended the warrant for his apprehension.
IGIHE