Yoon and his legal team have repeatedly invoked far-right claims, without evidence, of a conspiracy between South Korea’s left-wing opposition and Pyongyang as they defend the president from criminal charges of insurrection and try to convince the constitutional court to reinstate him.

A senior South Korean military commander has testified in court that he was asked how to cut electricity to parliament during last year’s failed martial law attempt by impeached President Yoon Suk Yeol.