Inhibitor claw

Inhibitor claws are a technology in the IDW comics portion of the Generation One continuity family.

The inhibitor claw is a form of restraint used by security and law enforcement forces on pre-war Cybertron. Given that many dissidents and criminals may have an abnormal configuration of limbs and many varied weapon systems, the claw is more effective than handcuffs or leg restraints. It is placed upon the chest of the combatant, and forces their weapons systems offline, also taking the fight out of them rather quickly and allowing further restraints to be placed more easily.

From Teletraan I: The Transformers Wiki, a Wikia wiki.