Building the frontier : drawing lines in physical space. Mapping the frontier -- Enforcing the frontier -- Strengthening the frontier -- Imagining the frontier : state visions of danger along the border. The specter of violence -- "Foreign Asians" on the frontier -- The indigenous threat -- Secret trades, porous borders. The smuggling of narcotics -- Counterfeiters across the frontier -- Illicit human cargoes -- The illegal weapons trade across the Anglo/Dutch frontier. Munitions and borders : arms in context -- Praxis and evasion : arms in motion -- A frontier story : the sorrows of Golam Merican. Contraband and the junk Kim Ban An -- Worlds of illegality, 1873-99.