“It is definitely a case of poor judgment. We should drive that type of evidence up ourselves,” Kalmar police spokesperson Sven-Erik Karlsson told the Oskarshamns-Tidningen newspaper.
However the head of the Kalmar police department’s forensic division defended the decision to send the evidence, a plastic bag, in the mail.
He argued that there wasn’t any rush, as the two suspects in the case aren’t sitting in custody.
The plastic bag had traces of an explosive material and was the most important evidence against the two welders suspected of preparing acts of sabotage at the nuclear plant.
The men were arrested on Wednesday of last week, but the bag only arrived at the national crime lab in Linköping on Monday for analysis because police sent the evidence by regular mail, according to the newspaper.
The two workers, one of whom had a criminal record, were questioned but have been released, although the suspicions haven’t yet been written off completely.
One man has been barred from continuing to work at the facility and the other is on leave pending further advances in the police investigation.