It would also do you well to keep in mind that if we're using the criminal justice system as some standard obstruction of justice itself is a crime, as is destruction/tampering of evidence as well as witness tampering. Physical evidence is not required to convict; strong circumstantial evidence is often sufficent.
How exactly is the Chinese regime not to blame for this mess? Between the blatant cover-up and falsified reports and underreporting deaths by a couple of orders of magnitude and knowingly stating that the virus didn't spread when they knew full well it spread like wildfire and intentionally leaving out demostratedly infected but asymptomatic cases out of the statistics while simultaneously blaming new cases on infected foreigners, how is China's regime not to blame for this whole mess?
And should we now just forget that the Chinese regime has been trying to pin the blame on their covid19 mess on Italy of all places?