[20] The description of the class which Ms Taubenfeld is said to represent is "all protestors in occupation" of land at a specified address although the apparent misdescription in the title of the application has already been noted. The intention is to include Lots 6, 7 and 8, according to the evidence. In my view there is a fundamental difficulty about this description for the purpose of defining a class. The criteria bringing a person within the description are that the person is, firstly, a protestor and, secondly, in occupation of the site. There is evidence in the applicant's material that the "protest group often changes in number and consistency", and that it is impossible to identify by name each of the protestors "who have from time to time and do now occupy the land". It may be added that, if the context of the class is to be determined by reference to the time of institution of proceedings on the time of the making of orders, or any other time, there is nothing to suggest that short of admissions being made by individuals, it will be possible to establish who is subject to the orders. This degree of fluidity illustrates the difficulty about defining a class of which an individual can be made representative.