'Alleged' - So We Should Not Draw Conclusions.

Four Afghan boys, aged 13 to 16, arrested over alleged rape of girl, 15, at Dover school arrived in UK on small boats a year ago - amid claims 'one carried out attack as others pinned her down'

• One of the boys allegedly raped the girl while the other three acted as 'lookouts'.

By DAISY GRAHAM-BROWN and NATASHA ANDERSON  and RORY TINGLE, HOME AFFAIRS CORRESPONDENT