Tunisian activists protested on Tuesday near a Tunis court where prominent figures face charges of conspiring against state security.
Forty people, including high-profile politicians, businessmen and journalists, are being prosecuted in the case. More than 20 have fled abroad.
Some politicians were arrested in 2023 in a crackdown on opposition ranks, including Ghazi Chaouachi, Issam Chebbi, Jawahar Ben Mbrak, Abdelhamid Jlassi and Khyam Turki.
The former presidential chief of staff, Nadia Akacha, and former head of intelligence Kamel Guizani, are among the accused. They live abroad.
"We are facing the biggest judicial scandals. It is one of the darkest injustices in Tunisia's history," Bassam Trifi, the head of the Tunisian human rights league, said.
President Kais Saied said in 2023 these politicians were "traitors and terrorists" and that the judges who acquitted them were their accomplices.
Chaima Issa, a senior official in the Salvation Front, the main opposition coalition, is among eight people appearing before the judge while they are free in the trial's first session.
"This trial is unjust and a disgrace to the authorities. It is a purely political case that has included all political leaders," Issa told Reuters before the hearing.
"Our charge is that we oppose the regime. I will continue the struggle at any cost," she added.
Most of the leaders of political parties in Tunisia are in prison including Abir Moussi, leader of the Free Constitutional Party, and Rached Ghannouchi, the head of Ennahda party, two of Saied’s most prominent opponents, remain in prison since 2023 in others cases.
The government says there is democracy in Tunisia and Saied says he will not be a dictator, but he says that no one is above the law and what he calls a corrupt elite must be held accountable.
