I have scrutineered both roadracers and mxers for knockin' on for 40 years, long before all the litigation and duty of care to cover mindless idiocy rules were invoked, and I still scrutineer the same way - to check to the best of my experience that the bike is fit to race for the safety of its' rider and others.
Imagine my surprise when I sat an MA scrutineering course, with a very nice morning tea.... hours of rulebook knowledge, dealing with conflict and reconciliation, and finally, 20 minutes spent looking around a bike. The MA way is to run scared of any possible litigation or controversy, but they regularly drop the ball. What Mark says, is how it is, but that doesn't make it right. I maintain : Scrutineers should check ONLY bike safety, and eligibility will take care of itself through the battle between optimism and acceptance....