Amend British Museum Act 1963 allow for return of artefacts on permanent basis

Museums are facing calls to return artefacts to their places of origin. Section 3 of the British Museum Act holds that the Trustees of the British Museum shall not dispose of objects vested in them except for exceptional circumstances - "Trustees do not have the power to sell, exchange, give away or dispose of any object vested in them and comprised in the Collection unless object is a duplicate of another object held in the Collection, object is unfit or useless for the purposes of the Museum".