Scotland Bill

I am sorry; it is very bad to interrupt my noble and learned friend so often but I just do not understand this. I can understand the concept—the wish—to devolve to the Scottish Parliament the power to regulate firearms, and the wish to give to the Scottish Parliament the power to regulate air weapons. However, I do not understand the concept that the Scottish Parliament should be able to deal with only some air weapons and not others. That will create monumental confusion and we could end up with a system where the less dangerous weapons are subject to more control than the most dangerous weapons, which would be absolutely absurd. How would we avoid that?