Six anti-slavery activists are in prison in Mauritania in a case rights experts say points to the challenges of ensuring a 2007 law criminalising slavery is more than just words on paper. The six men, members of the Mauritanian anti-slavery group Initiative pour la résurgence du mouvement abolitioniste (IRA), are set to go on trial in the capital, Nouakchott, on 5 January after two postponements. The authorities reportedly said the IRA members attacked security forces; the activists said they were simply demonstrating against slavery.