South Korea's Supreme Court sentenced Noh Sang-won, a former commander of the Defense Intelligence Command, to two years in prison on Tuesday [1].

The ruling marks the first time the nation's highest court has issued a decision regarding the events of the Dec. 3, 2022, emergency martial law period [1]. This case establishes a legal precedent for how the judiciary handles the misuse of classified military data linked to that political crisis.

Prosecutors said Noh, acting as a civilian, illegally extracted classified military personnel information [1]. The court found that this data was used to establish a civilian entity known as the "second investigation team" [1].

According to the prosecution, the purpose of this civilian team was to probe alleged election fraud that occurred during the 12·3 emergency martial law episode [1]. The court said the extraction of this sensitive data violated military and privacy laws.

The decision comes approximately one year and five months after the initial martial law incident [1]. The sentence of two years in prison was finalized by the Supreme Court in Seoul [1].

Noh previously led the Defense Intelligence Command, a role that provided him with the expertise and connections to access high-level military data [1]. The court's focus remained on the illegality of the data extraction rather than the validity of the fraud claims Noh intended to investigate [1].

The ruling marks the first time the nation's highest court has issued a decision regarding the events of the Dec. 3, 2022, emergency martial law period.

This ruling signals a judicial crackdown on the unauthorized use of state intelligence for private or political investigations. By penalizing the formation of a 'second investigation team,' the court is reinforcing the boundary between official military intelligence operations and civilian political activism, specifically regarding the contentious 2022 martial law period.