South Korea inaugurated its new president, Yoon Suk-yeol, last week.

Yoon is from the conservative People Power Party; his predecessor, Moon Jae-in, was from the progressive Democratic Party. There is widespread suspicion that Yoon will open a criminal investigation into ex-president Moon.

South Korea’s presidents have routinely been jailed after the end of their terms. Frequently investigations have felt politically motivated. Certainly, the targeted political camp has argued that, and the charges usually turn on contested definitions of corruption and abuse of office.