It is the last part of a hearing by the Supreme Court of an action by Ryanair - which is trying to escape from a very inconvenient Labour Court finding. Ryanair have lost everything up to this point (and most observers think they will lose this one too). Ryanair know they are lost if their pilots make it to a full hearing in the Labour Court so they are trying every possible manoeuvre to avoid or delay a hearing. The case is being fought by IALPA (technically they are doing so on behalf of the Labour Court).