custody of tower keys From a purely saftey point of view, Im not sure how having a key helps if a rope / stay clapper / breaks? There is nothing having a key does to make the situation safer in the imeadiate moment, and once the saftey of any ringers / bystanders has been dealt with, presumably the bell ropes etc. can be secured in the normal way. There may need to be an additional sign saying "broken stay" (or similar), but that would probably be the case even if you had a key, as spare stays (or ropes or clappers) arnt useually readiily available. There may be an argument that there needs to be an inspection after such an incident, but presumably informing the church authorities (whomsoever they might be) would eventually procure access to the tower, if necesary, and wouldnt need to be an urgent thing.