 This class of charities can be held valid even when it only impacts on a class within a locality, as in "Goodman v Saltash Corporation".This can apply even when the class "fluctuates", such as in "Re Christchurch Inclosure Act", where a gift was for the benefit of the inhabitants of a group of cottages, whoever those inhabitants might be.Charitable trusts have historically been invalid if they include "purely recreational pastimes", as in "IRC v City of Glasgow Police Athletic Association"; even though the purpose of the charity was to improve the efficiency of the police force, the fact that this included a recreational element invalidated the trust.