Police in Sörmland County, Sweden, have received complaints regarding illegal jet ski operation throughout the summer. Specifically, violations have been reported on Lake Viren, situated between Katrineholm and Vingåker. Current regulations in Sörmland only permit jet ski use on two designated lakes. Despite the reported infractions, Katrineholm police state that prosecuting offenders is proving challenging. The limited legal operation zones and difficulties in enforcement are contributing to the problem. Authorities are facing obstacles in effectively addressing the illegal activity. Further action is needed to improve compliance with jet ski regulations within the county.