Telephone records are usually saved for one year, but were deleted after only 6 months.
The records were apparently deleted after a special commission investigating the government’s actions after the tsunami asked senior government official Lars Danielsson if he had called the foreign ministry following the catastrophe.
Danielsson, one of former Prime Minister Göran Persson’s closest advisors, was criticized heavily by the commission for giving inconsistent information about who he had spoke with after the tsunami.
The deleted records would have made it clear whom Danielsson had spoken with, and when.
Information from some 4,500 telephones was erased.