Landerholm himself will now be called in for new interrogations, reports Expressen. He is suspected of negligence with confidential information.
The cleaning lady, who is from Georgia, had been unreachable abroad, but Säpo found her.
She has been asked a number of questions about the incident, which she has answered, says prosecutor Mats Ljungqvist to Dagens Nyheter.
Due to the secrecy of the preliminary investigation, he does not want to disclose what came out in the interrogation.
Strengthening the evidence
The cleaning lady can be linked to a violent extremist environment. A few months after the incident at Gällöfsta course center, 15,000 kronor was transferred to her from a Russian citizen who, according to Säpo, moves in Islamist circles.
The secret documents had been missing, but the information has been recovered by Säpo, according to DN.
We have, in our opinion, largely obtained the information that Landerholm left behind at Gällöfsta, says Mats Ljungqvist to the newspaper.
It is unclear whether it is connected to the cleaning lady being found and interrogated.
Chief Prosecutor Per Lindqvist at the National Unit for Security Cases says to TT that the evidence against Landerholm has now been strengthened.
These measures strengthen the prosecution in our opinion, then one can discuss how much and in which parts. But our opinion is that the evidence has been strengthened through what we have done now, he says.
More measures are being taken
The investigation is ongoing, but Lindqvist does not want to provide any details on how.
Within the framework of this reopened preliminary investigation, we have done certain other things and we will do more things. Within one to two months, I would guess that everything is finished.
The investigation is not particularly complicated, although it contains some complicated legal issues. But the alleged crime is fairly simple to define, according to Per Lindqvist.