22 Counsel for the plaintiffs in the group proceeding, whose submissions were adopted by counsel for Birti, contended that the plaintiffs would be prejudiced by not having extensively investigated alternative causes for the ignition of the fire because of the admission. Three matters were put. First, the plaintiffs will seek to identify whether there are further eye witnesses who were present at or about the time and place of the ignition of the fire. Counsel for the plaintiffs contended that the trail to any further evidence has run cold. Second, the expert report of Dr Sweeting that has been served by the State parties must be referred to the plaintiffs' experts, and further, different experts may be needed. It is expected that this referral will warrant further inquiries and investigations, analyses and reports. In particular, access may be required to the relevant electricity assets, notably the insulators from poles 169 and 170. Third, the plaintiffs wish to consider the implications of the alternative causation theories now being advanced by the State parties. The court was informed that this will involve reconsideration of the plaintiffs' pleadings, following advice from its experts, and further instructions.