What I just said is

Whether they can be (or, in the case of Milosevic, could have been) convicted of war crimes or crimes against humanity in a fair trial is a different matter, and it is possible that they cannot. Certainly the prosecution has bungled some of the cases and give the appearance of less than fair trial. And, to me, it is maybe better to let a war criminal go than to taint international law with a string of sham trials.