This may be me overthinking things once again, but I just realized that my fantasy-mystery, my general mystery, and my historical mystery all have one thing in common: the main character, the one solving the murders, has absolutely no ties whatsoever to any law enforcement. They're not a private detective or a consultant hired by a police department, they're not a police officer themselves, they're not part of any CSI team. They're basically, for all intents and purposes, ordinary civilians and at the most, they may have a friend/family member within the legal system. In my fantasy-mystery, the MC is an orphan living in a shelter. In my general mystery, the MC is your average college kid. In my historical mystery, the MC is an employee at a local tavern. None of them have any connection to any law enforcement in any way, shape, or form. Is this at all believable? Granted these are all targeted at YA, so perhaps there's some leeway, but I'm just wondering how you go about writing a mystery where the protagonist has no connection to any justice system. This is especially apparent in the general mystery that's set in our world in modern times. How would a random college kid even start solving murder mysteries without the law banging down his door and asking him what exactly does he think he's doing? This isn't like the fantasy or historical mystery where I can kind of get away with it: an ordinary college kid, in our world in modern times, runs around solving murder mysteries and no one in the legal chain questions this? No one pulls him aside and asks, "Kevin, what in God's name are you doing?!" My overall question is this: does having a mystery where the MC has absolutely no connection to the law, yet solves crime and fight criminals make any sense? How does one go about writing one? Thoughts?