“Parties may be removed, added or substituted in existing proceedings either on the court’s own initiative or on the application of either an existing party or a person who wishes to become a party.” 18. It is clear that all relevant parties should be included in the proceedings. I am satisfied that I have the power to join any parties who are not hitherto part of the proceedings. In this respect, for the present I have the difficulty that the contractors’ interests remain potential. Further I must balance those potential interests with the additional likely costs of their being involved, particularly at this stage. I am not persuaded at this stage that the potential interests of the contractors conflict with those of the DTI in resisting the generic issues that have been identified. As Mr Jay, counsel for the DTI puts it, if the DTI successfully defends in relation to the central issue as to whether the NCB/BCC were liable in negligence or statutory duty, there will be nothing for the contractors to litigate. In my view, should that result, then considerable costs will have been saved. In the event, that the claims are successful on that central issue, then it is by no means clear that the DTI would seek to join the contractors, presumably on the basis that the NCB/BCC was primarily responsible for the safety of mineworkers underground, a responsibility exercised throughout at the lowest managerial level by their Deputies.” “Parties may be removed, added or substituted in existing proceedings either on the court’s own initiative or on the application of either an existing party or a person who wishes to become a party.”