User blog comment:Zippertrain85/Dunmer/Argonian slavery, my thoughts./@comment-1822253-20140121202123

I think it's a combination of both Dunmer raiding the outskirts of the Black Marsh and Argonians looking to profit.

But the Archeins was a position created after Black Marsh was "conquered" by the Septim Empire. They were native Argonians who assimulated into Imperial culture and worked as advisors to the Imperial governors and even governed the rural area's of Black Marsh. They often owned large tracts of land in these rural area's with plenty of workers. Undoubtably they sold a number of their workers to Dunmer slave traders.

However, nothing in any ingame lore mentioned that the Dunmer actually went deep into Black Marsh, just that they raided the Marsh for slaves.