Funily enough I can OBSERVE, WATCH, WITNESS (you get these concepts ?) as police officers search the bags, pockets and wallets of (mostly) teenage boys at the busy station where I interchange on my daily commute.
Funily enough I can OBSERVE, WATCH, WITNESS (you get these concepts ?) as police officers take ID from "foreigners" and radio it in to a database to check the legal status of people they have stopped on sus in stations on my commute.
Today I OBSERVED, WATCHED, WITNESSED (you get these concepts?) as plain clothed tickets inspectors checked the name of the ticketless individual (coupled with racist / xenophobic comment) on their database. I ASSUME if he had been a repeat offender they would have called the police, rather than just issuing a fixed penalty.