By A Staff Reporter : What causes train accidents? This time there will be a statutory investigation.The Railway Safety Commissioner of South Eastern Railway has decided to conduct a statutory inquiry at the South Institute in Kharagpur on June 5 and 6.Statutory inquiry is going to be initiated by the railways in connection with derailment of 12841 Shalimar-Chennai Central Karamandal Express and 12864 SMVT Bengaluru-Howrah Superfast Express at Bahanaga Bazar station near Baleswar in Odisha.