Policies already exist but impossible to force agreement or compliance. Suppose clear evidence comes out this was a lab-grown virus, released either accidentall

Policies already exist but impossible to force agreement or compliance. Suppose clear evidence comes out this was a lab-grown virus, released either accidentally or maliciously. Then what? What agency will punish China? How would that knowledge affect global response to the virus? I imagine every nation with sufficient capabilities has secret biowarfare research going on — no clean hands. Pointing fingers and speeches in the UN won’t change that.