As prime minister, Han stood “as the foremost state institution guaranteeing the president’s duty to safeguard the nation and the constitution”, she said.
“These considerations regarding the role of the prime minister formed the basis of today’s request.”
Yoon’s stunning Dec 3 martial law declaration saw armed soldiers deploy to the National Assembly but was swiftly voted down by opposition MPs, leading to his impeachment.
Yoon was formally removed from office in April by the Constitutional Court, which ruled that his martial law declaration – the first in more than 40 years – violated the constitution.
Han assumed Yoon’s post as acting president and was once seen as a strong candidate of the conservative bloc to run in a snap election.
He resigned from the role in May to pursue a presidential bid, which soon collapsed when Yoon’s party refused to nominate him as its standard-bearer.
https://www.channelnewsasia.com/east-asia/south-korea-seek-arrest-former-prime-minister-han-duck-soo-martial-law-5311381
