Unfortunately the hall is no more... as with so many of the 'protected' building s here in the UK... they mystyeriously get set alight and therefore have to be pulled down rather than spending money to repair them and renovate! A great shame... and a too common story!

I think they may hint at the word 'Schedule' under the terms of the 1968 Medicines Act. Medicines under certain 'Schedules' were termed 'Poisons' and in order to comply with the act had to be locked away (from other drugs) and certain other laws had to be adhered to.