Law Destruction Eye is the third eye of the Ci Lie Beast, the sworn enemies of the dragons, and this eye is vastly renowned in the Spirit Realm.
Law Destruction Eye can be used to unleash strange abilities, to directly attack the enemy and see through the majority of illusionary techniques. Even movement and teleportation techniques can't escape the tracking abilities of this eye. The Ci Lie Beast directly tear open space and slay enemies through the powers of the eye alone.
Han Li obtained it from killed three-eyed demon beast that inherited a part of the Ci Lie Beast's bloodline. It manifests itself as a third eye on the forehead.