I'll quote a story from myself two years ago to answer that question.
Also I would like to state that I am reformed since this incident and RLJ no more.
Funny/shameful story for you lot.
About 6 months ago I RLJ by Bank on my way to work. Copper in all black jumps out from pavement to stop me, I only noticed him when he grabbed my shoulder, I proceeded to shurg it off and thought fuck it, hes on foot, Im on bike, so i just carried on merrily.
But oh no, thats when the madness starts. He radios in other cops who in a military like operation descend on me one after another from side streets, all trying to block my path. Clearly I had been playing too much grand theft auto the night before, I swerved round each one. They couldn't keep up with their silly hybrids but they just kept on appearing from the side streets. Eventually I heard sirens, noticed a few on motorbikes and a cop car and thats when I realised this was bonkers so i got off the bike and "surrendered".
They proceeded to arrest me on suspicion of stealing my bike (fair enough, although it was police tagged in my name, but the database wasn't working that day, hhhmm), and they also suspected I was a drug dealer and dvd pirate man. They handcuffed me and took me to the slammer. Had to wear an inmate outfit which was quite funny as it was about 3 sizes to small. I had to wait in a cell for 3 hours until I saw someone. In that time, I did more push ups/squats/sitsups than I have done in years through shear boredom. Eventually the lawyer I requested came in to tell me what to say when I got interviewed by mister inspector and so I said it and was given an official caution. Apparently lasts 5 years and means I cannot be a teacher or a lawyer or jobs of that nature. I didnt get a fine though which was nice.
It was totally stupid of me to dodge all those coppers but my ever so slightly rebellious nature took over, I made that split second decision to avoid the first one and from there I had to stick with it.
I'll quote a story from myself two years ago to answer that question.
Also I would like to state that I am reformed since this incident and RLJ no more.