“Get her the gun,” Silas told Towne. “If anybody came up this driveway,” Silas continued, “forget it. Women shoot to kill.” Towne got the message. “Where do you work?” he asked the vice cop. “Right now we’re working in Chinatown.” “What do you do there?” “Nothing.” “What do you mean, nothing?” “Well, that’s pretty much what we’re told to do in Chinatown, is nothing. Because with the different tongs, the language and everything else, we can’t tell whether we’re helping somebody commit a crime or prevent one. So, we just … we do nothing.”
Silas is a real undercover cop actually working in Chinatowne that sold Towne a dog meant for security

