The car mechanic example is fair but there is a difference here. ... If a car mechanic, whilst removing the wheel to replace pads, noticed a worn tyre, a faulty disc or any other issue, what would he do about it and, more to the point, what would he be expected to do about it?
The expectation would surely be that he should bring those defects to the attention of the owner - indicating, if appropriate, how urgent it was to address them. If he then decided not to do anything about them and, as a consequence, subsequently died, I really can't see how a Coroner (or anyone else) could really criticise the electrician in that situation, could (s)he (even if the brake pads had been replaced)? In context, the real question is whether, having detected (and reported) the worn tyre, faulty disk or whatever, the mechanic should then refuse to change the brake pads unless those other issues were also addressed. Does safety, or anything else, really benefit from leaving the vehicle with worn-out pads
as well as those other defects?
It is, IMHO, manifestly unfair to criticise a professional whilst permitting joe public to do whatever he/she wants with little or no critcism.
I'm not sure that is necessarily the case, except in the minds of some of the electricians (whose main consideration may be their personal 'liability'). If electrical work undertaken by J Public result in a death, I would not expect a Coroner (or, indeed, a Judge) to remain silent about that. It could be that the problem arose because of something "a non-professional would not be expected to know", but the criticism would then presumably be that Mr Public had taken on work that he was not competent to do.
Any attempt to make this sort of uber-regulation would, as I said, be unpopular with joe public but it would remove the clear inconsistency. Yes it would lead to 'illegal/unregulated' electrical work but that will remain a fact of life irrespective. DIY Gas is still alive and kicking despite the uber-regulation of that profession.
Of course, but the sort of uber-regulation you refer to would undoubtedly result in an increase in that 'illegal' work. The extent would depend on 'how far it was taken' by the professionals. A fairly high proportion of electrical installations probably have some 'potential problems' (certainly non-compliances with current regs), and if all the 'legal' electricians refused to do even very minor work unless all those issues were rectified, it would leave many (wo)men in the street with little choice but to turn to 'illegal' solutions.
Having come from a profession where the 'you should have known better' law applies across the board, I sympathise with all those in similar circumstances.
So do I (I'm not an electrician, or anything like it!), albeit I have a number of professional hats. However, in my primary (aka first) one, the main test of one's actions is whether those actions would be supported by 'a body of' (by no means necessarily a majority of) fellow professionals.
Kind Regards, John