Judge Richard Goldstone (former chief prosecutor of the United Nations International Criminal Tribunal for the former Yugoslavia and Rwanda), writing for the BBC on the extradition of General Ratko Mladic, said it represented yet another key milestone in the "end of the effective impunity for the worst war criminals".
Making particular reference to Sri Lanka and Syria, Judge Goldstone warned perpetrators of war crimes, crimes against humanity and genocide that they will be brought justice.
"It is my hope that the leaders of Sri Lanka and Syria will not be granted immunity for the crimes they are alleged to have committed against innocent civilians in their countries.
"The arrest in the past few days of Gen Mladic must cause added discomfort for others alleged to have committed serious war crimes.
"They must be concerned that eventually they will be brought to account before relevant domestic or international courts and will have to answer to many tens of thousands of victims for the crimes alleged to have been committed by them."
See Judge Goldstone's remarks in full here.