I'd add that framing the hiring decision as charity ("giving someone a second chance") could be improved. I'd go for more of a "diamond in the rough" angle.
"Find talent everyone else is missing."
"Find talent everyone else is missing."
Once knew a guy online that had done something stupid when he was a teenager. He was a big, scruffy guy and altogether would've been a hard sell to an employer. But he was exceptionally smart and funny - would make a great colleague - and I bet many employers would've overlooked him.