Sure, Englishal, though what I was getting at was rather more along the lines of enforcing technical breaches e.g. a departure into known icing conditions, and a VFR departure into "obviously" non VFR conditions. The CAA never enforces any of that - nor should it because with any half decent defence lawyer it would lose most of the cases, and it would make a mockery of the regs.
I suppose the FAA can afford to go after some people in such cases because the FAR rules are more clearly written. Far from perfect (plenty of grey areas) but a lot clearer than the ANO.