The Serious Fraud Office (SFO) has said it appointed former security chief at the Palace of Westminster, Peter Mason CBE, to look into the data loss.
Mr Mason is said to have concluded that it was accidental, and made a number of recommendations which have all been accepted by the SFO.
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Labour can make a collective decision on whether to back renewal of Britain's nuclear deterrent, the shadow defence secretary said.
The whale is reported to be alive and thrashing about in the shallow water as coastguards keep an eye on it in Mundesley, Norfolk.
The train crash in southern Germany is just the latest in a history of rail accidents in the country.