I haven't had time to research this issues in-depth but I wanted to mention a couple of thoughts.

Criminal law is treated differently than civil liability, and just because someone is not found criminally liable for an act, they can still be sued and found financially liable in a civil court. Civil courts commonly handle disputes regarding business finances.

Cryptocurrency networks are transcontinental and thus international agreements and treaties may apply, although enforcement of these agreements may not fall on local authorities. I'm not aware of any agreements that would necessarily apply to cryptocurrency at this time, but i thought it was worth mentioning.