On the 50th anniversary of the case on November 8th, 1972, French president Emmanuel Macron’s office released a statement saying: “Half a century after this great victory of a few women for all the others, the President reaffirms his attachment to this major conquest for their freedom.

“At a time when so many women are still deprived of this right, when countries are taking it away from them or challenging it, France will continue to tirelessly defend it and support those who, throughout the world, are fighting to obtain it.”

Marie-Claire Chevalier was 16 when a boy the same age attacked her and made her pregnant. Her mother, an employee of the Paris public transport authority, helped her find a backstreet abortion.

But her rapist informed on her and she was ordered to stand trial at a children’s court in the Paris suburb of Bobigny.

Her mother and three others were also charged with conspiring to commit the illegal abortion.

Lawyer Gisele Halimi took on their defence, and helped sway public opinion by enlisting celebrities such as feminist philosopher Simone de Beauvoir to testify.

On October 11th, 1972, Chevalier was acquitted, a verdict whose momentous impact would lead parliament to legalise abortions  two years later.

The case was the ideal opportunity “to speak out, over the heads of the magistrates, to public opinion and to the country to denounce the law,” Halimi told journalist Annick Cojean for a 2020 book about her life.

She also had the backing of fellow feminists fed up with a law that disproportionately punished women of modest means who could not afford to travel abroad for a legal termination.

A few days before the trial, they had gathered for a peaceful protest in central Paris.

It was “a trial against injustice, the trial of a woman from an underprivileged background who could not go to England or Sweden to have an abortion in the best conditions,” recalled Claudine Monteil, a historian and retired diplomat who took part in the protests, when she was 22.

A massive security force was deployed and many demonstrators received “punches” and “truncheon blows” as police detained 54 people, Le Monde newspaper wrote at the time.

“They hit us, pulled our hair. It was terrible: There was screaming, women falling on the ground, a young woman who was almost killed,” Monteil said.

But the authorities made a mistake, she said, since the brutal crackdown only intensified the public focus on Chevalier’s case, and activists massed outside the courthouse when the trial began.

“I could hear the crowd outside shouting… ‘We’ve all aborted,’ ‘Free Marie-Claire,’ or even ‘England for the rich, prison for the poor’,” Halimi said in her book.

She also recalled, “The anger I felt in front of these men about to judge us and who knew nothing of the life of a woman.”

At around 11 am, the protesters tried to break through the police barrier and force their way into the closed proceedings, before being pushed back.

Just an hour and a half later, Chevalier emerged from the courthouse, acquitted.

“I was scared,” she told the crowd, while Halimi declared, “We put the abortion ban on trial.”

Several weeks later, on November 8th, Halimi was back in a different court to defend Chevalier’s mother Michele, two of her colleagues and the person who carried out the abortion.

She again called to the stand as witnesses famous actresses, a Nobel Prize-winning doctor and de Beauvoir, author of “The Second Sex”, who took the court’s male judges to task.

“She lectured them on society’s hypocrisy, on how women were being treated,” she said. “For us, it was wonderful to see judges drop their gaze like little boys. It was an extraordinary moment to see judges not dare criticise Simone de Beauvoir”.

In her statements, Halimi attacked a law that she said discriminated against the poorer classes.

Had the court ever tried “the wife of a high-ranking official, of a famous doctor, or of a corporate executive? You always try the same women, the Mrs Chevaliers” of this world, she said.

“This archaic law cannot survive. It goes against women’s freedom.”

Chevalier’s mother and the person who carried out the abortion were handed suspended sentences, the two others acquitted.

But for Halimi, the victory was clear. “This ruling is an irreversible step towards a change of the law,” she said outside the courthouse.

Just over two years later, in January 1975, lawmakers voted to legalise abortion.

This autumn, parliament is due to debate enshrining the right to abortion in the French constitution.