Damn this sucks! And to have been given a Retina Scan, i would have been very upset as well. Im not sure if you would win contesting this but like another post suggested was, i wonder what his dash cam recorded. Im sure i would not have given him permission to have allowed a Retina Scan but in these situations we never really know what to do because it usually is our first time with anything like this. It seems he was taking things above the necesary procedures for this traffic stop. But why would he ask what Dept you were with?