According to the Rhein Zeitung newspaper, the 48-year-old Detlef S. from Fluterschen in Rhineland-Palatinate is suspected of abusing his biological children, as well as his step-daughter, for 23 years. He also allegedly forced his daughters into prostitution.
A spokesman for the court in Koblenz confirmed that the man would appear before a judge on Tuesday. He has been in custody on remand since August 2010.
The paper also said that DNA tests had proved the man had fathered seven children with his step-daughter. Another child had died and was not tested.
He stands accused of serially abusing his step-son, his step-daughter and his biological daughters between 1987 and 2010. He is also said to have taken both his step-daughter and one of his biological daughters to two other men, who carried out sexual acts with them.
The spokesman declined to say what age the children were when the abuse was said to have taken place.
The mother of the children has been called as a witness. Police do not suspect her of being an accomplice.
The paper quotes a neighbour saying, “We often wondered about the number of children in his house.” But the town mayor commented, “The family did not particularly attract attention.”