Interesting conundrum SamC,
This is kind of at the heart of the DIY question.
I've worked with homeowners, on occasion. I require that they only work when I am present and that I review everything they do, before it is closed or covered up. They have to accept that I will need to teach them specifics and that I will include this time in my billable hours.
I my area, the local governments allow the owner / occupant of a single family dwelling to secure his own permit and do the work. Any other type of building requires an Electrical Contractor license holder to pull the permit.
Can your client pull their own permit? This, at minimum, records their involvement. If not, then they can't touch the tools unless you are present.
I have found my clients receptive to this notion, as, at heart, they really want a safe installation.
Al
