"(ii) The pre-hearing review will deal with the issue of whether or not the tribunal has jurisdiction in relation to the unfair dismissal, written reasons for dismissal and race claims and, in any event, it will decide whether, (whatever maybe the position insofar as jurisdiction is concerned) those claims should be struck out or whether the claimant should be ordered to pay a deposit (of up to£500 ) as a condition precedent to being allowed to continue with those claims on their merits, in other words, if the tribunal concludes they have no reasonable prospects of success."