Threats have been directed the prosecutor in the case Ulrika Rogland as well as judge Monica Nebelius, who stepped down from the case following the threats.
An investigator in the case was also threatened, according to the TV4 affiliate in Malmö.
The case involves ten men on trial suspected of having sold a mentally handicapped 14-year-old girl for sex.
Prosecutors allege that the girl was sexually abused and raped by several different men after she ran away from a foster home in a nearby municipality last March before ending up in the Rosengård district of Malmö.
Although she is 14-years-old she is reported to have the mental capacity equivalent to that of a girl several years younger.
The case is also significant because it represents the first time that prosecutors in Sweden have attempted to classify pimping crimes as human trafficking.
Police have now detained a 36-year-old man and an 18-year-old woman on suspicions of threatening a civil servant, according to prosecutor Ulrika Åberg in Gothenburg, whose office is leading up the investigation into the threats.
She refused to comment on why the two are suspected or what the suspects have to say regarding the suspicions against them.
They two are believed to be behind the threats make against a police officer working on the pimping case investigation, as well as against prosecutor Rogland, who led the investigation and is also arguing the case in court.
However, the suspects are not believed to have threatened the judge Nebelius.
Rogland will be interviewed as a part of the investigation, just as any other victim of a crime would be. As such, it was a natural step to have the investigation led out of the prosecutors’ office in Gothenburg, according to Åberg.
“It’s good to remove it (the investigation) from the region,” she told the TT news agency.