What does HAD mean by 'repatriation'?

HAD's remit includes the repatriation of ancient British human remains. By this, we mean that we would like to see human remains returned to museums within or close to the tribal lands where they were originally interred. If human remains are to be reburied, this ought to be done as close as possible to the original place of burial.

A key aspect of Pagan spirituality, ancient and modern, is a deep connection with the land: to remove a person from their land once they are dead, and take them to another place, is experienced as an act of disconnection.