Also, The interstate commerce clause was designed to keep trade between the states regular. In other words, it gave Congress authority to pass laws facilitating trade. It allowed the government to tell the states they could not each have their own form of currency, and it gives Congress the power to tell Michigan that it cannot ban products from Ohio. The interstate commerce clause was never designed as, or meant to be a tool for passing any and every regulation under the sun, simply because interstate trade is involved. Furthermore, any regulation passed under the interstate commerce clause STILL has to comply with all other constitutional restrictions on power, including the bill of rights. And I would say that giving the government the power to randomly stop and detain, without cause, to pursue an investigation of the vehicles driver, demanding that he show documentation of who he is doing business with, who he works for, everywhere he has been, everywhere he is going, what town he slept in last night, and what time he went to bed, is woefully in violation of both fourth and fifth amendment protections.