clerk of works used to check all site work so when you got there it was right then check what you do to the mm now its the site forman who may have been a labour a few weeks earler. our a wood bucher who could not make it on price but talked the talk .
when learning my trade most of the companies we worked for had clerk of the works, one of them i will always remember was 2mm phil and if it wasnt right you would be doing it again, no matter what costings were involved