After approving articles on the creation and prerogatives of the constitutional court, lawmakers completed the chapter on the judiciary, qualifying the legal profession as "free and independent, and which participates in the realisation of justice and the defence of rights and freedoms."
The articles defining the powers of the judiciary are particularly sensitive in a country that only recently emerged from five decades of dictatorship, and sparked angry exchanges and chaotic scenes in parliament when they were debated earlier this week.
The assembly is pushing ahead with the adoption of a long-delayed new constitution, scrutinising it article by article, as required before a vote to approve the whole text can take place.
The often sharp differences between the majority Islamist party and the secular opposition have repeatedly obstructed the process, which was due to be completed by an agreed deadline of January 14, the third anniversary of the revolution that toppled Zine El Abidine Ben Ali.