Olympic Games Lanes

Can anyone confirm for sure who's allowed to give fines / threaten with confiscation (do they even have the powers to do this? I assume they wouldn't attempt to confiscate a car that went in the lane?) . I was under the impression that it's only the police. Is that correct?
Neither the police, nor anyone else, short of a court order, has powers to confiscate a bicycle*, and there is nothing in the games legislation that grants this power.

Out of my cold, dead hands.

• Unless you have a sharpened bicycle, and are going to use it to stab someone.