Sniffer Dogs

Developed by NanoSniff Technologies, an IIT-Bombay incubated startup, in partnership with Vehant Technologies, the NanoSniffer is the world’s first microsensor-based explosive trace detector.

Interestingly, these 'robo doggos' will not only have a nose for explosives, they will also be able to X-ray scan the luggage of passengers with their eyes!

What makes the story even more endearing is that, besides being part of many (bomb) search operations for over a decade, the four were best buddies and inseparable.