Why else take such risks. These fighters say they were given bonuses for combat operations in Kosovo in addition to a percentage of looted Albanian property. They were not just swat teams or special forces because Yugoslavia already had such units within the police and military. This unit was for a long time outside of any chain of command. It's highly unusual for the security service to have its own combat unit.
Intelligence services are there to get information.
But these people are killers. They were Milosevic's Praetorian guard. When Albanian insurgents began pushing for Kosovo's independence from Serbia by assassinating state officials, JSO units were deployed to crush the rebellion. JSO reservists interviewed for this report said operations in Kosovo initially focused on hitting Albanian guerrilla targets and terrorizing civilian sympathizers. But as soon as Nato launched its air campaign against Serbia, JSO units were ordered to coordinate expulsions of Albanian civilians.