However, the conduct of the 1989 elections was little difference from past elections. The RCD swept every seat in the legislature, and Ben Ali appeared alone on the ballot in Tunisia's first presidential election since 1974. Although opposition parties had been legal since 1981, presidential candidates were required to get endorsements from 30 political figures. Given the RCD's near-absolute dominance of the political scene, prospective opposition candidates discovered they could not get their nomination papers signed. The subsequent years saw the return of several Bourguiba-era restrictions. For many years, the press had been expected to practice self-censorship, but this increasingly gave way to official censorship. Amendments to the press code allowed the Interior Ministry to review all newspaper and magazine articles before publication. In 1992, the president's younger brother Habib Ben Ali was tried in absentia in France for laundering the proceeds of drug trafficking, in a case known as the "couscous connection".