Who's Chasing South Korea's President?

In South Korea, arresting a sitting president is a tough job. President Yoon Suk Yeol is under investigation by a bunch of law enforcement agencies. The Corruption Investigation Office (CIO) is leading the charge. They're the only ones with the power to detain him. But they're new and small. The state prosecutors and police are also looking into him. They've been working together since their cases started competing. The CIO needs help from the police and military investigators to keep up. President Yoon's last line of defense is the Presidential Security Service. They've promised to protect him. But they're facing pressure from the police to cooperate. The Constitutional Court is also deciding if he should stay in power. This is all happening because President Yoon declared martial law. His decision led to his impeachment. Now, he's facing insurrection charges. It's a messy situation with many agencies involved.