Crisis management measures taken by national resolution authorities may require complex economic assessments and a large margin of discretion. The national resolution authorities are specifically equipped with the expertise needed for making those assessments and for determining the appropriate use of the margin of discretion. Therefore, it is important to ensure that the complex economic assessments made by national resolution authorities in that context are used as a basis by national courts when reviewing the crisis management measures concerned. However, the complex nature of those assessments should not prevent national courts from examining whether the evidence relied on by the resolution authority is factually accurate, reliable and consistent, whether that evidence contains all relevant information which should be taken into account in order to assess a complex situation and whether it is capable of substantiating the conclusions drawn therefrom.