Hamma al-Hammami knows the peril Tunisia risks if it slides back into autocracy, as he and opposition parties warn it may do if President Kais Saied passes his draft constitution in a referendum on Monday.
Hammami, a leftist political leader, was repeatedly imprisoned and tortured from 1972 until the 2011 revolution that brought democracy to Tunisia - a moment he experienced from inside an Interior Ministry cell hearing the crowd roar outside.
