On-chain tool to seize crypto is a purist’s nightmare, but a must, says CEO

I’m not too clear on how this works in reality; anyone heard of it / know more about it? On the face of it it sounds like the parties would need to have opted in to a dispute resolution process? Or am I missing something? According to the article it’s only in the US (?).

“On Aug. 8, a U.S. District Court used Jurat’s on-chain enforcement tool to lock several sanctioned individuals out of their crypto accounts. These individuals were sanctioned for money laundering and using ransomware to extort cryptocurrency payments to benefit North Korea’s weapons program”