Trouble is you'll never prove who done it and they cant throw them all inside.
Another situation I came across last week was going back to a job I had wired up with another spark to find the builder had decided to fit a socket in the bathroom for the customers electric toothbrush, he had added more lights which werent IP rated and his joints were blocks with some tape round. When I asked him what his game was he said that because the job had been signed off and build control had gone he wasnt fussed. He knew he shouldnt have been doing it but didnt have any regard for the regs or obviously for anyones safety.
Now if there was an injury/fatality there, the chances are they would go knocking on the other sparks door that I was with (his job so he signed it off) followed closely by mine.
I dont know the details of this incident and if it was the sparks who had wired it up then lets hope they get a long sentance and all the part p bodies ban them from registering again. But unfortunately work does get changed when we leave, could even of been the painter taking it off while he was working there and putting it back on wrong, its hard to prove whats happened.
Good reminder though of how one error or lack of attention could lead to something as sad as this.
Rob
Reading above posts, sounds like it was directly related to the company and installers. As mentioned if your the one doing the work, you have the responsibility, forget what some idiot in an office is trying to get you to do. One less job a day is definately worth being able to go home knowing you have left an installation safe.