Paul, I would write the report regardless of personal affiliations. This Guy is a tenant, and he may move in 6 months time, then the next people that occupy it pick up the pieces.
Safety must always be paramount, regardless of the Regs, they are only a minimum standard after-all.
I carry a digital camera with me everywhere, if I am called upon to do an inspection I take as many photos as I can (1 GB Microdrive holds a lot of 640x480 ..900k Jpegs!).
All our Guys carry small Fuji digital camera's for this very reason.
Matter of opinion never becomes an issue then as you have photographic evidence.
