I don't know the circs of this individual case. I too, subject to qualification, agree why not?
However, the reality is a hard call!
There's a worrried neighbour. Do nothing.
Someone happens to notice. The local policeman hears something. Do nothing. Haven't time to visit site or meet person. One of my Officers, it transpires, sort of, knew; with the best of intentions, did nothing. Neighbours, more than one now, have written letter to you and cc'd it to local press. Local Bat Group have expressed concern. Local Cave Group are up in arms.
Vanoord has found out!
Hard call. An "informed do nothing" is not on the agenda.
Damned if you do, damned if you don't!