As someone who spent the best part of his working life on production lines,"Inspection", as a method of ensuring stuff is made right went out with the Ark [ no pun intended!]. We ran 'quality control', which is an entirely different concept. QC runs in parallel with production, does not slow it down, checking that the right materials, components, tools procedures and skills are employed, and we ran sampling to get a grip on faults - that is only critical stuff got a 100% check. The operators do the bulk of this checking work, based on the japanese model of doing the right thing and doing the thing right. If you put that into the context of an Inspector checking a tradesman's efforts, you will see that in fact you have to rely on the electricians skills and knowledge anyway for practically all of the work being done correctly, especially in places you can't see. An Inspector won't find every fault- but if his initial look-see spots poor workmanship or glaring errors, alarm bells should sound, heralding a more rigorous inspection. Everyone makes mistakes- the art of being a pro is that you learn and don't repeat them, surely?
