41.   Police were questioning the conductor of the second train for alleged professional negligence, while the company operating the trains admitted human error and apologised.

42.   Prosecutors have reportedly launched an investigation and are said to be planning to arrest Matsumura soon for professional negligence.

43.   The company has been investigated on suspicion of professional negligence over the sale of HIV-tainted products that caused Acquired Immune Deficiency Syndrome among hemophiliacs.