On September 11th, the ICTY Trial Chamber rendered its judgment in the case (No. IT-03-67-R77.1) against Ljubiša Petković. Petković was charged (order here) with contempt of the Tribunal for having knowingly and willfully interfered in the administration of justice by refusing to respect a summons and appear as a witness before the Chamber.
In its decision (summary here; press release here; judgment not yet available online), the Trial Chamber found Petković guilty and sentenced him to four months imprisonment.