South Korea's court to decide Yoon's fate, opposition party to vote on Han's impeachment

South Korean Constitutional Court will hold its first hearing tomorrow (Friday) in the case of President Yoon Suk Yeol, after parliament impeached him over his short-lived martial law decree on December 3.

South Korea's opposition democratic party to vote on acting President Han Duck Soo's impeachment on Friday as well, according to Yonhap news agency.

Here are key issues for South Korea's road ahead.

What next?

After being impeached on December 14, Yoon's presidential powers are suspended but he remains in office, retaining his immunity from most charges except for insurrection or treason. Yoon-appointed Prime Minister Han Duck-soo is acting president.

The Constitutional Court must decide within 180 days whether to remove Yoon from office or reject the impeachment and restore his powers. If the court removes Yoon or he resigns, a presidential election must be held within 60 days.

The court is due to hold its first preparatory hearing on Friday.

Opposition Democratic Party lawmaker Jung Chung-rae, the head of parliament's Legislation and Judiciary Committee, is leading the case for removing Yoon.

Yoon's legal counsel has not yet been announced, but his background as a prosecutor has sparked reports that he is turning to former colleagues or could even represent himself.

Kim Hong-il, a former prosecutor and former head of the broadcasting regulator under Yoon, as well as former Constitutional Court spokesperson Bae Bo-yoon, are expected to join Yoon's legal teams in the impeachment review and in criminal investigations, local media has reported.