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, or usefulness has ended when war has ended.

List of Kinjutsu
Multiple Shadow Clone Technique
 * Status: Sealed by the First Hokage

Dead Demon Consuming Seal
 * Status: Sealed. Used by the Fourth Hokage and Third Hokage