^^ That's what I was thinking too. It's probably their way of telling the bicylists to be happy (by giving a hug) that they are alive and keep it that way by wearing a helmet. I think the point was well made.
sweet!
i admit it is a bit unusual but it is a smart move by the police!
i don't know about you, but i would be more likely to wear a helmet after getting a reaction like that from the police. if i had gotten a different reaction from the police- in a naggy-naggy or scolding kind of way- i'd be less likely to follow the rules next time.