Example image of eyePlorer eyePlorer map for 'Underground economy': Commerce Law Tax Economic freedom Fence (criminal) Border trade Alcoholic beverage Smuggling Tobacco Crime Car boot sale Taxicab Baltimore Carpool Illegal taxicab operation Recreational drug use War on Drugs Organized crime Drug liberalization Prohibition Unintended consequence Prostitution Code word (figure of speech) Netherlands Nicaragua Prostitution of children Legislature Ownership Weapon Automatic firearm Caliber Combat knife Explosive material Firearm Insider Gunsmith Blunderbuss Cannon Drive-by shooting U.S. state North Carolina South Carolina Dublin Liverpool Republic of Ireland European Union Grey market Common Travel Area Compact Disc Computer software