This is a difficult one without knowing all the details - however, i can tell you that 13 or so years ago a similar thing happened to me, I had an accident and was then prosecuted for careless driving although I felt strongly I had not been acting carelessly. I was advised by my solicitor at the time that these cases are very dificult to defend, and really the CPS do not bother to bring the case unless they are confident of winning. Defending it would be very costly, and unlikely to succeed unless you had a very strong case or one of these solicitors who get celebrities off scott free in return for a huge fee . (As it turned out, my solicitor knew the CPS prosecutor and persuaded him to drop the case). Do you have a solicitor who would look at this for a fixed - and hopefully small - fee, to advise you if it is worth going to court? The experience of going to court could be extremely stressful, with no guarantee of the outcome, so I would be tempted to take the course.