Paul, I am very perplexed by this post.
I recently did a drain test of the emergency lights about the development. To do this I had to switch off the lights on the communal distribution board. We do not have fuses, we have RCD switches and these are linked to the door alarm, the lights, the tv amp and the stairwell sockets. Also these do not just pull out. If there was a communal fuse and it had been removed, all of the flats would have had the same problem. There would have been 10 defrosted freezers and no power to any of the flats in block 98.
If this was indeed the case then I will look into this matter further for you.