.. .Kaba has developed a technology that allows you to open a locked door just by touching the handle? But only, of course, if you have the right authorization. The secret lies in “RCID” (Resistive Capacity Identification), which utilizes the human body’s own electrostatic charge. One man who has used RCID to great effect is inventor Frank M. Rinderknecht, who incorporated it into the Rinspeed eXasis concept car he presented at the Geneva Motor Show. The car “knows” precisely whether someone is authorized to activate the ignition, turn on the light or listen to music – and all by touch, without any key.