Cyclists should wear identification similar to number plates on vehicles so it is easier to prosecute them, a police commissioner said.
It will "make life easier for everybody" if cyclist are held to account in the same way drivers are, Sussex Police and Crime Commissioner Katy Bourne said.
However, campaigners in Brighton have dismissed the idea as "totally unrealistic", according to The Argus.
While Mrs Bourne admitted the idea was "one for the legislators", she told a public meeting there was a "debate that should be had".
She told the newspaper after the meeting that the idea had been "at the back of my mind for a long time".
Tony Green, 67, of the Brighton and Hove Cycling Campaign, dismissed the idea saying administrative and practical reasons made it "totally unrealistic".