Mac has stayed decently good at keeping a low profile except he was totally around when a giant fire chicken sprang out of someone's Echo-having, and no one (aside from Ellie who has threatened him with all the murder if he spills she was the guard) has figured out it was him raiding the warehouse a couple months back.

However, Mac's past is littered with troublemaking offenses - nothing super majorly serious, but all the classic delinquent signs. Graffiti tagging, out past curfew, the occasional street brawl. He ran with a group called The Tunnel Snakes, which was a decently troublesome if low-threat gang that officers would have on file (since it's been brought up ICly by former officer Raul and current officer Kotetsu). Said gang has not been active for about two years now, but were active for two to three years before that.

So while he hasn't done anything major in terms of sticking his head out, he's got enough past that bringing him in in some capacity wouldn't be unreasonable.