Niagara police turned up at a Halloween party in St. Catharines.
Armed with a search warrant, they seized six beer kegs and charged four people at a residence on Jacobson Ave. last night.
Police say their investigation was all part of an intiative with Brock University to address issues at off-campus housing in St. Catharines and Thorold.
Four people were charged with unlawfully keeping liquor for sale in contravention of the Liquor Licence Act of Ontario.