In Switzerland, voters are to decide whether foreigners convicted of certain crimes should be deported once they complete their sentence. The conservative Swiss People's Party has been leading a heated campaign to throw out the "black sheep". The current law allows for criminals to be deported from Switzerland, but it is not always enforced. The campaign has provoked much debate, but the latest poll shows a slim majority of Swiss people in favour of changing the law.
Programme prepared by Kate Williams, Marie Billon and Patrick Lovett