A fair chance includes a difficult employment ecosystem for everybody. Even a fair chance, likely means they'll be unemployed.
http://ac360.blogs.cnn.com/2008/08/09/study-black-man-and-wh...
Surely the decision should be based on the likelihood of future criminal action. If a criminal past is accepted as an indicator of future criminal activity then we have rejected the concept of rehabilitation. If this is the only deciding factor we may also blind ourselves to other risks.