The requirement that claims be 'interdependent or essentially alternative' is not an immutable precondition for a Bullock order; a substantial connection between claims may suffice. Bullock orders are available in s 138 Accident Compensation Act 1985 apportionment proceedings. However, a plaintiff who unreasonably refuses Calderbank offers from a successful defendant cannot pass the resulting indemnity costs burden to the unsuccessful defendant via a Bullock order where the unsuccessful defendant's conduct did not induce the persistence in the claim.
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