The whole case against building a School at Harcourt Street is that it was to be built on a past tip with the available scientific information that this could prove a serious hazard to health. This scientific information was being “covered up” or was not being presented truthfully. Indirect evidence of this is that the budgeted cost of the school rose exponentially and it is supposed/alleged that this extra cost was to cover the possible undeclared site decontamination costs after approval had been given but before the school had been built.