I won't address the policy issue beyond saying that anyone who has to take a measurement should at least be trained and have the background (if you will) to understand that if you drop a measuring device (or many other things) there is a possibility that the fall broke it and that if they're in the least bit suspicious they should stop using it. They should also understand that if they're seeing results that they don't usually see or expect, whether they've dropped it or not, the same applies.
Ford may require a writen policy to address an issue such as this but it's a silly requirement. They must have some real 'interesting' suppliers if they have suppliers who have people taking measurements who aren't qualified to use the device / gage (read understand some real basic stuff - like, if it's dropped it may be broken).
A 'dropped gage' policy. Sheesh. Next it'll be a Common Sense' policy. :thedeal: