That would be so helpful! Approaching others is such a huge hurdle even when you know your stuff, it's almost impossible when you don't know what good (or bad) looks like :)The biggest benefit was that it took the fear away when approaching someone carrying out a task that looked unsafe but the viewer didn't have the level of skill to be sure and didn't want to look foolish.
If you are interested in workplace health & safety in New Zealand, then this is the discussion forum for you.