People don't wear it on a badge.
You probably don't know about it.
Also, what's the definition of 'people you know' here? Is it people you would invite to dinner at your house?
Or is it the son of the headteacher you had when you finished school in 1994?
The corner shop person who serves you once a week when you buy your scratch card. You've seen him once a week for ten years.
You're not going to know that your hairdresser's mother got done for shoplifting in Boots when she was 21 back in 1972, are you?
The accountant at your husband's work (40 person office) who left in 2017 was later arrested for fraud at his next job. Your husband always included him in the tea round and vice versa.
Your dog walker used to deal drugs (prescription painkillers), that's why he was struck off as a pharmacist and now does dog walking.
None of those people are going to tell you, what they did.
At church, after the service, "By the way, did you know I was arrested for flashing in 2006?"
You see the name 'Richard Smith' in the Little Bumblebury Herald in 2014. You're not going to connect it to your new boss's brother Richard Smith in 2023. And they're not going to shout out, "Nine years ago my brother was caught drunk driving and had his license taken away." He crashed into a lampost no other cars nearby. No-one injured, but he got breathalysed when the police came. He couldn't run away because the accident jammed the door shut and he had to be cut out by the fire brigade.