No Keg at Home?

Bannock County, Idaho Ordinances of 1988-4 § 1 (Codified as 5.08.020), says that it is unlawful to possess a keg of beer without a permit from the Sheriff. There are a few exceptions, one of which is "other lawful purposes within Bannock County." I wonder if wanting to drink the beer would be considered an "other lawful purpose."

It only applies to kegs of 7-1/2 gallons or larger, so my presumption is that this is a way to regulate bars in the county. Lawyers must have been involved, because the next section says that the court can infer that a keg contains beer if the witnesses say it contains beer or if it is labeled as beer. Okay, so if there's a big keg with a Miller label on it, somebody felt they should authorize a judge to infer that it contains beer?