The Jönköping court found that the evidence was not sufficient to rule that the man had forced the then 14-year-old girl to have sex, and instead convicted him on the alternate charge of sexual exploitation.
The man was also convicted for the rape of an older girl as well as drugs offences.
The 15-year-old girl committed suicide prior to the start of the trial in April. Prosecutor Erik Schreiber then abandoned this part of the case against the man, ruling that there was no further evidence aside from the girl's testimony.
Schreiber announced shortly after that he had asked the courts to examine his own decision to close the case. This led to the case being forwarded to the district court after a decision by the prosecutor's office.
As the man had admitted to supplying the girl with amphetamines, the prosecutor's office added a charge of sexual exploitation.
Wilhelm Storck at the Linköping prosecutor's office has since taken over the case.
The sexual offences against the 15-year-old girl occurred while she was housed in a treatment centre, placed there by the social services in Jönköping.
The district council has since examined the actions of the social services and found that no fault can be attributed.
The treatment centre has however since been closed, and the council's treatment of the girl is the subject of a investigation by the county administrative board.