Nidaa Tounes's Executive Office member Mahdi Abdul Jawad on Saturday said his party had no links with the country's ousted president Zine El Abidine Ben Ali's regime.
During a conference on "Islamists and Governance" held in Amman, Abdul Jawad added that the party was formed by a group of opposition leaders.
He stressed that the return of the old regime was impossible over legal and constitutional reasons.
Abdul Jawad said Nidaa Tounes called for punishing anyone who committed human rights or financial crimes against the Tunisian people.
He added that Tunisia remained the country that offered the greatest hopes of a stabilized democracy in the Arab and Muslim world.