This article, Mind's Eye of the Kagura, contains content taken directly from our mother site. All credit of such content is reserved the original authors over at Narutopedia, the original article can be read here: "Mind's Eye of the Kagura" .
This ability allows Karin to find, sense, and track individuals through their chakra over vast range that exceeds ten kilometres. This is done by focusing and opening the mind's eye, though Karin has it active often. The ability extends to telling when a person is lying from the fluctuations in a person's chakra made from dishonest emotions or detecting if someone, including herself, is under a genjutsu. Also by focusing on a particular chakra Karin can perceive its location and movement with great detail.