Seat belt that required a particular technical approach would rapidly become dated as motor manufacturers would tool up for a particular standard which could not easily be changed. For example, in 1969 there were competing designs for lap and three-point seat belts, rapidly tilting seats, and airbags being developed. But as countries started to mandate seat belt restraints the global auto industry invested in the tooling and standardized exclusively on seat belts, and ignored other restraint designs such as air bags for several decades As of 2016, seat belt laws can be divided into two categories: primary and secondary. A primary seat
Compulsory Process Clause would make the right to compel witnesses futile. However, in "Taylor v. Illinois" (1988), the Court rejected a challenge to witness preclusion rules, holding that the Clause did not provide for an "absolute" right for defendants. The Court held that "The Compulsory Process Clause provides [the defendant] with an effective weapon, but it is a weapon that cannot be used irresponsibly". There are "countervailing public interests" which weigh against an absolute position of applying the Clause; this signaled a major turn since "Washington" two decades earlier. In modern practice, a violation of the Compulsory Process Clause leads to the reversal