The Vitoc booster has become more than a simple strategy by the Amarrians in controling their slaves. With the Vitoc method, slaves are injected with a toxic chemical substance that is fatal unless the recipient receives a constant supply of an antidote. The method first appeared a few centuries ago when the Amarrians started manning some of their space ships with slaves. As space crew the slaves had to be cajoled into doing complex, often independent work, making older methods of slave control undesirable. Although the more conventional ways of subduing slaves with force (actual or threat of) are still widely used in other forced labor areas, the Vitoc method has proven itself admirably for the fleet.