German brother and sister are challenging the law against incest so that they can continue their relationship free from the threat of imprisonment. Patrick Stübing, an unemployed locksmith, and his sister Susan have had four children together since starting a sexual relationship in 2000. Three of the children are in foster care, and two have unspecified disabilities. The couple, who live near Leipzig, grew up separately and only met many years later. Their supporters say they will fight until incest is no longer regarded as a criminal offence, arguing that the law is out of date. They say it harks...