Inspection Sticker Expired How Do Police Detect How Do Police Spot Expired Inspection Stickers?

How do police spot expired inspection stickers? - inspection sticker expired how do police detect

From what I've read that the police identify expired inspection sticker from a distance can. Several years ago, was arrested for an expired inspection sticker. It is the place where the only option expired inspection sticker to the police watching them and how to spot them from a distance?