The West Bengal Criminal Investigation Department (CID) sleuths on Thursday began a probe into the Sainthia train tragedy that claimed 63 lives Monday.
A CID team led by Deputy Inspector General (Special) Pankaj Dutta visited Sainthia station in Birbhum district, and went to the Government Railway Police (GRP) outpost where the First Information Report (FIR) was registered by a person into the accident.
The CID officially took over the investigation from the GRP.
The CID personnel spoke to railway officials, hawkers and eye witnesses to the accident. They then proceeded to the Gadadharpur station, where the Uttar Banga Express halted for two minutes before getting clearance for approaching Sainthia.
The CID team spoke to the deputy station master at Gadadharpur who was on duty on Monday morning and then returned to Sainthia to examine the railway tracks and the signalling system. They also checked the different points on the down main line, said a railway employee.