Bernard Durkan (Kildare North, Fine Gael) | Oireachtas source

Does the test that they have in the United States work? Are there pitfalls similar to the ones that we have experienced here, and do they happen to a greater or lesser extent? From our point of view in trying to establish confidence in the system, I believe that is the way we have to go. We have to know how well we can rely on whichever system is being used. Professor Kitchener has already said that we need the two systems. That is good. We know already one of them is imprecise in its determination. Let us compare that with the United States and see which works best. Could the witnesses indicate which we should do?