I mean with things like sex trafficking, labor trafficking, etc. IMO it should be called slavery, and those affected need to be rescued from slavery.
A pimp enslaves people
The Tate Brothers (allegedly) enslaved people.
IMO, referring to sex/labor trafficking to slavery will show it just how evil it actually is.
Also, the inmates have experience fighting fires however due to their criminal record. It can be nigh impossible for an ex-convict to get a job even with their qualifications.