Taser vs knife

Taser drops attacker

In this Future Weapons demonstration a would-be attacker is instantly incapacitated by a taser.

TASER X26 is weapon designed for lawful self-defense or defense of others by temporarily incapacitating a person from a reasonably safe distance while reducing the likelihood of serious injuries or death. Though they have been found to be a safer and more effective alternative when used as directed to other traditional self-defense use-of-force tools and techniques, it is important to remember that the very nature of self-defense, use of force, and physical confrontation or incapacitation involves a degree  of  risk  that  someone  will  get  hurt  or  may  even  be  killed  due  to  physical  exertion, unforeseen circumstances, and/or individual susceptibilities.