That's still not *my* problem - I don't require the trade, I want to do it myself as I always have done. I, like so many others, cannot afford to employ someone to do thing I can do myself. If the trade wants Part P, that's wonderful, but for me it's utterly uncessesary.
Not from those figures you quoted, not least as they are not broken down into meaningful data about specific causes. There's no evidence in that figure to indicate that DIY'ers cause any more a problems than the trade, or indeed The Late JC's Dad.
I think it has. All the companies I worked for before doing this had nice little expensivce stickers on everything electrical giving the last and next due date. About as worthwhike excersise as saying a car with a 6 month old MOT is guaranteed to be safe :-(
But it won't make any odds - again, see Rouge Traders et al. The only thing that stops cowboys, in any area of endevour, is for customers to realise that you get what you pay for. Part P's, CORGI, etc make no difference to those who congratulate themselves on saving a few quid without asking how. The outright conmen arn't going to be put off, since, by definition, they *are* conmen!
Richard