A female employee caught the man with his pants down in the archives of the western town. She also noticed that he was pointing a camera at himself.
When questioned by police, the hobby researcher denied the charges, claiming that he had just gone to the archive to get inspiration.
He further explained that he had brought a camera along to take photographs of newspaper clippings and old books, Hallands Nyheter reports.
But the man’s story came unstuck when police identified traces of his sperm on the chair where he had been sitting.
Betrayed by his own stain, he confessed to the charge of indecency and was given a fine.