Authorizes the City of Greenville city council to levy, by ordinance, a tax of up to one percent (1%) on the sale of alcoholic beverages sold at establishments within the city having retail ABC permits. Net proceeds of the tax shall be used only for law enforcement purposes. In lieu of a tax on the sale of alcoholic beverages, the Greenville City Council is also authorized to levy, by ordinance, a license tax in an amount to be set by the council for all persons holding a retail ABC permit within the city.