OK, that was much too easy.Congratulations to Nic and Toby for correctly identifying the object as a frame-mounted bike-immobilizer.
And I’m disappointed to hear about bike thefts in Helsinki being on the up. But clearly it’s not such a problem as in London where no one would dream of locking their bicycle with anything that did not secure it to an immovable object. Maybe the solution is just to have a bike so old that no one would want to pinch it.
Where I hope I am not being naive is in feeling much safer as I go around Helsinki. Although there’s a fair smattering of drunken behaviour it doesn’t seem to translate itself into aggression in the way that it does in so many British towns and cities. But talking of crime, I was surprised to see a leaflet in the tourist office warning people against handing over their wallets to people posing as police officers. Is this a rising form or criminal activity I wonder.