The act of empathic subjugation is always an evil action, and is often used to extract information from an unwilling subject. It is, in fact, a form of torture, in which the empath seeds the target's mind with feelings of sickness and horror, and overwhelms the target's mind until he or she would agree to do anything just to make the feelings of sickness and madness stop.
To initiate empathic subjugation, the empath must first establish empathic control. To actualize the empathic assault the target's Willpower must be completely obliterated in a process that resembles spirit combat. The empath may attempt three empathic assaults each round, matching his Willpower against the target's Willpower on the universal matrix. The progression of Willpower loss follows the rules on formal spirit combat.
During the subjugation process, the empath must concentrate on sending images of rot, decay, violence, suffering, pain, fire, and death. The end result is that the victim begins to feel the death of all hope in his spirit -- a feeling that progresses until his will is broken.
Once the victim's Willpower is brought to zero, he will essentially be a very communicative robot. For the next 3d4 rounds, the victim of the empathic rape will answer truthfully any question asked of him. Moreover, the empath can set up one (and only one) post hypnotic suggestion; the most common command is, of course "Forget this took place", but commanding suicide is certainly not unheard of. A save versus sleep/charm negates the post-hypnotic suggestion.
As stated earlier, the act of empathic subjugation is always evil. Depending on the situation, performing this act may or may not immediately change the character's alignment. Frequent, repeated use of this power will definitely move the character's alignment toward Evil. Moreover, the victim of empathic subjugation must make a successful save versus system shock or risk a 20% chance of contracting insanity.