Duff, who represented the European Parliament at the Intergovernmental Conference which negotiated the Treaty and is a specialist on constitutional affairs, said:
"The new Treaty is fairly complicated and will need a lot of analysis and explanation. There are a lot of falsehoods peddled by the eurosceptics about the Treaty of Lisbon, so it's high time for the truth to be told.
"Lisbon constitutes a radical reform of the European Union. The EU emerges from this long and controversial negotiation greatly strengthened. Those who wish Europe well should welcome the new treaty."