Considering that Bethany employees 6 police officers i doubt they have their own dispatchers. According to the DB the Harrison County sheriffs department is located in Bethany and therefore more than likely dispatches for them.
6 officers isn't technically enough to even operate 24 hours a day, so therfore them having their own radio system or dispatcher is incredibly unlikely.
The top one is labeled fire, the 2nd one is labeled "?". Surely someone on this forum has been through bethany and could provide information beyond a "?" for 158.8350
The info i gave above is per the bethany, mo website in regards to # of officers. I still don't see them having a license for 39 units if they only have a few(if they have 6 officers that is more than likely less than 3 cars, maybe 4 for a backup)