I accept that the proposal for an L2 with HD/SD inside flats may be reasonable, indeed, necessary if compartmentation is poor - but is workable?
The idea that it will take a test case confirms my point that it would be difficult to near impossible to enforce.
First of all most purpose built flats will not require AFD but the few that do then I think it could be workable.
I agree enforcement using legislation is a non starter, other than the bluff and persuasion act.
If it is not going to cost anything and the occupants are given a full explanation then I believe they would be more receptive than you give then credit. Consider CFS, mings turning up on your doorstep with their bright red lorry, lecturing you for half an hour then sticking a smoke detector to the ceiling of your entrance lobby then going on their way.
I just think it would not be as difficult as you say and I thought I was a cynical old b*****d, I must be mellowing