Paris ? A presidential commission on Thursday backed a ban on Islamic head scarves in public schools — stepping into the wrenching debate over how to preserve the country’s secular identity while integrating France’s Muslim population, the largest in Western Europe.

If it becomes law, the measure would also bar other conspicuous religious symbols, including Jewish skullcaps and large Christian crosses. The commission spent six months studying the issue and held 120 hearings, collecting testimony from experts across Europe.

French President Jacques Chirac, who in the past has made clear his opposition to head scarves in the classroom, is expected on Wednesday to announce in an address to the nation whether he supports enacting the panel’s recommendations into law.

For nearly 15 years, France has debated the issue, but it has taken on new life during the past two years with the expulsion of dozens of girls from school for refusing to remove their scarves.

Bernard Stasi, who headed the commission, said the proposed law was aimed at keeping France’s strict secular underpinnings intact and at countering “forces that are trying to destabilize the country,” a reference to Islamic fundamentalists.

Stasi said the commission’s was not discriminating against France’s Muslim community but sought to give all religions a more equal footing.

The panel recommended a ban from classrooms of all “obvious” political and religious symbols including Islamic head scarves, Jewish skullcap and large Christian crucifixes. More discreet symbols such as small crosses would be acceptable, it said.

Muslims represent some 7 percent of France’s 60 million people.