Before acting, he added, the UK must be sure that an offender's country of origin was willing to imprison them for the same length of time as they would serve if they stayed in domestic jails.

BBC: The exterior of Norwich prison

The scientists know the gases are of cosmic origin because they contain an unusual ratio of isotopes - different types of the same atom.

BBC: ET gases caged on Earth

The aircraft would tour the five nations to pick up illegal immigrants of the same nationality, then return them to their country of origin.

BBC: NEWS | Europe | Europeans join forces on migrants

Recently, though, I have been bumping into stunning-looking women of a similar age to my own who proffer the same response to my question about their outfit's origin: Topshop.

WSJ: Tina Gaudoin on Style: How to Wear Topshop Past 25