You're undoubtedly right about your own view of reducing crime rate to improve the world as a whole. If there was such a technology, it would have revolutionised some investigations carried out formally. But even if there was a technology, I feel crime and corruption has become a sole part of the world and is even predicted in the bible. Even these so-called crime fighters are involved in corruption of the highest order to the point of overlooking or even concealing lot of crimes. Thanks for sharing your own view and for the invite as well