Ahh! I know that official inspectors go to University first--sometimes they aren't the best at the job, though. You can't teach logic or puzzle solving skills, I suppose. It's something you just have to be good at!

The Professor helps solve mysteries from time to time--and I always go along. I'm his apprentice!

It does rather make sense, though. You might learn how to examine a crime scene, but it's not just about what things are out of sorts in the room when you walk in, figuring out a mystery.