classic investigation still better than mass tests - "However, it was not the mass test that led to the current arrest, but classic investigative work. As the Dresden Public Prosecutor's Office, the Saxon State Criminal Police Office and members of the Heller Investigative Group announced yesterday, Wednesday, investigators had visited the suspect on May 21, 2008, and asked him for a DNA sample because the man had lived near the crime scenes at the time of the crime and had driven a car with a partially recognized license plate."