Posted By Alexander Falconer
You cannot be held responsible for an emploiyee's way of thinking.
All you can do is advise, train, retrain and retrain as much as you can, however it would all boil down to your H&S management culture & your monitoring programmes - step up your audits & inspections, catch them in the act more than once, instigate disciplinary procedures wherever possible, rectify by deeming additional training, instruction & information.
Breaches of HASAWA (sect 7), failing to take reasonable care of their own H&S, failing to cooperate with employer, etc, etc
One step too far, get rid, at least you gave him fair and ample opportunities to sort himself out, you tried to give him the support & training to rectify the issue - he fails, you did everything in a reasonably practicable manner.
Make sure that you dot your I's, cross your t's, and ensure that everything is properly documented, training records, disciplinary investigations, informal, verbal, written & final warnings (4 stage process), including the coerrective actions you agreed between you both at the end of each disciplinary.
If it went to tribunal, no contest, the company will be able to demonstrate and prove the offender was 100% to blame for the situation, and that they did everything possible to prevent it getting too far.