Kinjutsu

Kinjutsu are techniques that are banned by a certain community (i.e. Konoha). Such as the Multiple Shadow Clone Technique. Naruto Uzumaki had to learn the technique by stealing the First Hokages Scroll of Sealing. Kinjutsu are jutsu that have been banned because of their high chakra usage, damage to the user (from total exhaustion to the possibility of killing them), or usefulness has ended when war has ended. Kinjutsu are also so named due to violating certain laws of nature such as reviving the dead.

List of Kinjutsu
Creation Rebirth
 * Status: Used by Tsunade in extreme circumstances.

Dead Demon Consuming Seal Eight Chakra Gates
 * Status: Permanently sealed. All likely users (Fourth Hokage the creator, Third Hokage, and Jiraiya) currently dead.
 * Status: Sealed. Might Guy and Rock Lee have not used Jutsu to fullest extent.

Front Lotus
 * Status: Active. Rock Lee, Might Guy, and Kakashi Hatake currently use this jutsu. Sasuke Uchiha uses a variant known as the Lion Combo.

Living Corpse Reincarnation
 * Status: Inactive. Declared a Kinjutsu (or at least unnatural) by the Third Hokage, this technique is currently in possession of Sasuke Uchiha and Kabuto as the only known possible users. Sasuke Uchiha has copied it and Kabuto has Orochimaru's remains and experience with the jutsu and bodies.

Morning Peacock
 * Status: Active. Might Guy is the only known user.

Multiple Shadow Clone Technique
 * Status: Sealed by the First Hokage. Currently used as high level combat technique by Naruto Uzumaki.

Reverse Lotus
 * Status: Active. Used by Might Guy and Rock Lee in extreme circumstances.

Summoning: Impure World Resurrection
 * Status: Permanently Sealed. Only known user Orochimaru "dead". Subsequent user (Sasuke Uchiha) has not used the technique yet.

Twin Snakes Mutual Death
 * Status: Sealed by Orochimaru.

Wind Release: Rasenshuriken
 * Status: Sealed by Fifth Hokage.