A Saudi scientiest has invented and wants to patent a small chip that can be embedded in human skin.

The chip carries a tiny GPS device so that the person can be tracked with the help of a receiver hundreds of kilometers away.

But what makes this truly potent is the presence of a small dose of cyanide that can be remotely triggered to instantly kill the person.

So far the patent for the same has been denied – but it’s only a matter of time the bad guys get their hands on this seriously scary piece of technology.