Sheriff Swenson's department is a police station.
The Scooby-Doo Show
The gang visited the police department in order to tell the sheriff about the disappearance of Velma Dinkley's Uncle John. While there, Velma asked the sheriff if anyone else had disappeared. He told the gang about two young geologists who went missing. The geologists had visited three months ago and had done some research at the lake, and had disappeared shortly after. Fred Jones then told the sheriff about several old Runes that Velma's uncle had copied into his log book. Fred said that the gang thought it might give them a clue about the disappearance of Velma's uncle, and asked where they could get them translated. The sheriff then directed them to the Viking Museum's curator. The gang thanked the sheriff and then proceeded to head to the museum.