WOW so its not just me that has fell for this. I had a simular situation with a rusty red metro and me in my kitcar. My brake light switch on the kitcar only comes on with moderate pressure so slighty slowing down for something wont illuminate the lights (i know i have changed it now). But i also use the gears a lot to slow down too adding to the problem.
Well, this happened in a 30 zone before an island when after the island a metro was less than a metre from my back end. i watched the driver thinking he knew me but then decided when the road opened to a NSL i planted the throttle, still keeping in the speed limit i was now behind another car so was going 45 ish, he came flying up behind me flashing his headlights and waving all over the place. i watched him for a good 1/2 mile and then decided to pull over in an entrance to a farm (off the country road to not block it), he pulled up infront of me blocking the road, wound he passengers window donw and told me he was off duty and my brake lights didnt work. i tried to explain aboutt he switch (remember it has passed its SVA and MOT like this) and told him to follow me to a better place to pull over (you would have thought he should have suggested this

). Down the road i jumped out and lay under the rear of my car to find if it was indeed working, he walked up and gave me some abuse and told me to go straight home to fix it. as he walked off i demanded his PC number. He was stroppy all the time. My lights werent working (fair cop) but as he pulled off i smacked the lughts and they came on! lol
i have no problems being pulled over for this, but what i dont understand is 'IF' he was a cop why would you pull right up behind a car which you as a cop have spotted its brake lights arnt working? then give some abuse and so on?
I think he wasnt a copper (and hope really as if he is we are all doomed), but think he was looking for me to brake test him so he could smack into me then claim its my fault the lights arnt working.
I got very shacken and revengefull about it and nearly spend a few evenings waiting for him in my 2 tonne range rover. but just thought he is a looser in life and the next person he tries it on might stab him saving me the trouble.
I will now never stop for a car without its blue lights on.
I think you and i have been jooped by a low life who thinks they are a copper.
ps, this thread had turned into a good/bad cop one and to add my 2 pence worth, the 12 ish times i have talked to the police only once have i been satisfied THEY did their job correctly and that time it was a female! i think that says it all, some of the worse ones would have made me rich if i had a video recorder "if you dont shut up i will find something wrong with your car and the judge will believe me rather than you"!!!!!!!!!!!!.