A crowd of South Koreans who opposed President Yoon Suk-yeol react excitedly to the announcement of the Constitutional Court decision in Seoul on April 4, 2025. (©Kyodo)
Former South Korean President Yoon Suk Yeol's removal from office and recent conviction on charges of spearheading an insurrection mark one of the most consequential judicial interventions in the country's democratic history.
His political career ended not through electoral defeat but through judicial rulings that also shaped the leadership trajectory.
The episode has prompted debate over whether South Korea is drifting toward what comparative scholars call juristocracy, a system in which courts become the ultimate arbiters of political conflicts rather than the electorate.
Here, the concern is not that judges enforce the law. Judicial review is a core democratic safeguard. The concern is that political questions are increasingly settled through courts rather than through elections and ordinary political competition.
From Ballot to Bench
South Korea has long exhibited elements of judicialized politics. Since democratization, its courts have repeatedly stepped into presidential crises — most notably during the impeachment of Roh Moo-hyun in 2004, later overturned by the Constitutional Court, the removal of Park Geun-hye in 2017, and, more recently, the ousting of Yoon in 2025.
While many have regarded these events as strengthening the constitutional order by constraining executive power, they also elevated judicial authority in overriding the will of voters. Each presidency decided in court rather than at the ballot box reinforced the expectation that judges would ultimately settle major political disputes.
The February 19 ruling on Yoon's insurrection case extends this trend. His removal and subsequent criminal conviction together created a chain in which the judiciary overrode voters and decided leadership succession.
Supporters argue that Yoon's removal and conviction provided definitive closure to what they saw as an authoritarian threat. Critics counter that the ruling stretched the concept of insurrection into contested political territory and obscured the line between executive overreach and criminal conduct.
The stark divergence in interpretation illustrates a central feature of juristocracy, whereby judicial decisions on politically charged matters are almost inevitably read through partisan lenses.
When Politics Becomes Existential
Juristocracy, however, rarely arises from judicial ambition alone. It reflects deeper political conditions that drive actors to seek decisive outcomes in court. In South Korea's case, the most powerful driver is entrenched ideological polarization.
In recent years, the left–right divide has hardened into antagonistic partisanship in which each camp often sees the other not merely as political opponents with diverging policy preferences but as a danger to the republic's survival.
This dynamic is particularly visible in debates over security, external alignment, and national identity. Beneath the surface lies a deeper contest over South Korea's geopolitical reality.
Progressives tend to see the nation as a bridge on a divided peninsula, favouring inter-Korean reconciliation, greater diplomatic autonomy and pragmatic engagement with China, and a less security-centric reading of the US alliance. Conservatives see a frontline liberal democracy whose survival depends on deterrence and an unambiguous strategic partnership with the United States and Japan.
When political conflict maps onto identity in this way, electoral defeat carries existential implications. Losing power may mean not just policy reversal but perceived national peril, whether it be the abandonment of deterrence or foreclosing reconciliation.
Under such conditions, democratic alternation becomes difficult to accept. Political actors, therefore, seek more final and less reversible outcomes through non-majoritarian institutions, especially courts.
Courts as Battlefields
The recent political cycle illustrates this pattern. Successive administrations, across ideological lines, have repeatedly relied on prosecutors and courts — and weaponized the existing legal framework — to target both former and incumbent leaders as well as lawmakers.
Each side, anticipating future vulnerability, also contests judicial appointments and legislation to shape the judiciary itself. Courts thus serve as both shield and sword in a zero-sum political struggle.
In such environments, courts are repeatedly asked to resolve questions of political authority, turning legal adjudication into de facto governance.
Juristocracy as a Symptom
South Korea remains a resilient democracy with competitive elections and an independent judiciary. But the growing pattern in which leadership outcomes are shaped through impeachment rulings and criminal verdicts signals a shift in how political legitimacy is produced.
Juristocracy, in this sense, is less a judicial project than a symptom of deep political fragmentation. The same dynamic is evident in the rise of incumbent President Lee Jae-myung, whose ability to run for the presidency and remain in office ultimately depended on a higher court's decision to forgo trying his remanded criminal case.
Addressing this malady, first and foremost, requires political rather than legal remedies. South Korea's ideological camps must again treat one another as legitimate rivals rather than existential enemies. On issues such as North Korea policy, historical memory, and national identity, disagreement must be reframed as pluralism rather than treachery. Electoral defeat must be seen as temporary and reversible, not catastrophic.
Until then, incentives to litigate politics will persist. Each crisis will invite judicial resolution, and each ruling will further entrench courts as arbiters of political fate.
RELATED:
- Ex-South Korean President Yoon Sentenced to Life for Insurrection
- Martial Law in South Korea: A Symptom of Escalating Polarization
- Is President Yoon Suk-yeol Guilty of Inciting an Insurrection?
Author: Kenji Yoshida
