It turns out that the lead flashing has not yet been replaced. I know this as it is pissing it down and I have just called in to replace the emergency light. Water was dripping through the ceiling.
A fat bastard had decided that if the emergency light in the kitchen was not replaced then the place would have to be closed down for safety reasons (not the info I received last week).
I did point out that if I fit the light then the electrics will trip - and more to the point I cannot legally fit the light and power up the circuit.
There is still a working non-maintained emergency light in the kitchen above the exit door and the place is IMHO safe and legal from an emergency lighting point of view.