A headteacher attempted to invoke a UN convention to ban singing Christian hymns at a religiously diverse infant school. A third of students at Poulner Infant School have Christian parents, but humanist head Jo Conner believes singing hymns infringes on the 'human rights' of non-Christian students. All schools must provide an opportunity for wholly- or broadly-inclusive Christian worship to promote spiritual development: however, they may apply for an exemption in particular circumstances. Ms Conner sought an exemption, saying Christian hymns were inappropriate as only a third of students were Christian. The advisory council for Religious Education said any parent had a right to withdraw their child from collective worship, but no withdrawals had been recorded and no parents had complained about worship music. They rejected her application.