As Weedalot pointed out, the cargo's destination would seem to determine if it is "contraband" or not..
While the TAZ does not encourage ruffling the feather of House Law Enforcement by smuggling in their faces, we do have a slightly different definition of what is "illegal", depending on where it is bound.
For example, our Holy Tome, the Principia is now being printed on Ames. Somehow, our digi-Principias must reach the Temple!
Also, our Holy Sacrament is not quite ready for harvest at Pueblo Bonito. Therefore, we must rely on inferior synthetic substitutes for our Sacred ceremonies, or we have nothing to pass down the Left Side, eh?
You won't find us carrying slaves or cardi. We see enough of that pass through Baffin daily to turn our stomachs, thank you.