Since 2011, war crimes investigator Bill Wiley has been on the trail of the criminal elements of the Assad regime who have carried out extraordinary amounts of killings, torture and other crimes. His organisation https://cijaonline.org/ has been collecting evidence and documenting these crimes since the start of the civil war. Now that Assad's regime has fallen, it was a good opportunity to understand the current status and likely trajectory of attempts to bring justice to Syrians.