This is likely why Lee Jae-myung ran for the National Assembly and became the opposition party leader so he could get immunity from the charges he saw building against him. What is surprising about these results is that many in his own party voted in favor of his arrest:
The National Assembly voted Monday to reject the government’s request for consent to arrest opposition leader Lee Jae-myung over corruption charges by a margin of only one vote, a surprising result that shows many of Lee’s own party voted for his arrest.
The motion was voted down 139-138 with nine abstentions and 11 deemed invalid.
The result, though in line with widespread views that Lee’s main opposition Democratic Party (DP) would use its majority power to reject the request, came as a surprise because it could mean that up to 30 DP lawmakers could have cast dissenting votes.
The DP, which has 169 lawmakers in the 299-seat National Assembly, had urged its lawmakers to reject the motion, denouncing the prosecution’s attempt to arrest Lee as political revenge by President Yoon Suk Yeol against his presidential election rival.
All DP lawmakers took part in the vote.
In order for the motion to pass, it required a majority of the Assembly members to vote, and a majority of those voting to cast their ballots in favor. In Monday’s case, at least 149 votes were needed in favor of Lee’s arrest, as 297 out of 299 National Assembly members took part in the vote.
By law, parliamentary consent is necessary to arrest a lawmaker while parliament is in session.
Yonhap
You can read more at the link, but maybe someone in the Korean media just needs to “find” a tablet PC with incriminating evidence against Lee on it like the opposition did to impeach former President Park.