Originally Posted by BDC2823
I don't think it's the dogs fault. As the cop is circling the car all he has to do is tap the window, which the dog views as a command, and then the dog jumps onto the window. The officer then says, "Oh look, the dog sniffed drugs"
Often times they don't even need to make a physical gesture. Dogs are receptive to less obvious cues even when the cop doesn't do it intentionally.
Studies have shown bomb sniffing dogs in them military have a much higher accuracy rate because soldiers can't even inadvertantly give the dog cues, and the soldiers are more concerned about staying alive so prejudice has less effect on them.