Possibly a little bit off topic, but the subject of incompetent electrician's has raised its head so I'll throw this in the mix.
I agree that a better system to police electrical tradesmen should be in place, and the posts also calling for certain stipulations such as insurances etc. But I'm strongly of the view that a lot of the onus has to be put on home-owners. If a home-owner pulls in Bodgit Barry to do a cheap rewire, then the home-owner (and Bodgit Barry) should be held accountable for that.
I've just spent a fair whack extending the house. Did I open the yellow pages and say "he'll do"? Did I nick, and anybody that does that deserves to be stung. In this day and age there's no excuse for not being able to find a reputable tradesman - word of mouth, posting on a forum like this, review sites, there's no excuse - it's not the 1950's any longer. It takes two to tango, and to blame Bodgit Barry alone for ruining the trade is incorrect, as the home owner will either knowingly be employing him for his cheaper rates, or oblivious to the rules in which case he deserves to be stung. It's funny, my brother needed a new fence as his old one blew down this winter. His family gave him three recommendations (all people we know first hand, and know their high standards of work). He opted (for one reason or another) to pick a local name out of the Yellow Pages instead. His new fence cost him twice as much as my recommendations, and has only lasted two weeks. He now has the headache of chasing this fencer to get it sorted.