I is clear that Health & Safety appears to be a two pronged approach, keeping yourself and your staff safe and from being claimed against, although, would it surprise you that in the event of a death IMO you will still get fined, Health & Safety is very complex to be absolutely water tight against claims involving fatalities is not always achievable. For example the first question they will ask you is if there was a specific RA ( Risk Assessment) for that specific site and where is the proof that your employee understood it that day......
Worth thinking about how you teach your staff H&S and gaining proof ( regularly, maybe ) that they understand and have read your RA. OCS have this right with a hand held PDA that does not allow them to start the job unless they go through a couple questions, RA. By pressing the button that they understand helps a lot ( on each job)
Worth thinking about me thinks....