I'm guessing they would be 70 actual undocumented immigrants with actual criminal records then?

Not "brown looking" native americans or "foreign looking" US citizens that have been incorrectly identified and dragged without warrents from their homes and families barely dressed into the snow?

I'm not sure of the immigration status, just an article that called out ~70 transfers from MPD DOC to ICE following incarceration. I'd imagine it's a mix of documented and undocumented immigrants, as being convicted of a crime is a valid reason for the state to revoke a visa.