It doesn't even appear that this ruling took Ireland's laws into consideration. If this summary is accurate, then the appeals court merely ruled that a domestic warrant could not be used to retrieve foreign materials.
The proper procedure here is to work through the State Department to get a warrant in Irish court. Presumably they didn't do that because they knew it would be futile, in light of Ireland's data protection laws.
The proper procedure here is to work through the State Department to get a warrant in Irish court. Presumably they didn't do that because they knew it would be futile, in light of Ireland's data protection laws.