Generally, there's nothing new that caused the incident. We only do not follow what is already known. This calls for continuous reminder and thus retraining of persons.
And, HR department faces the problem of not getting the participants inspite of training calendar and listing of employees for training. This is because of not relieving these listed persons by respective incharges for various reasons like production or other jobs, or participants themselves not having interest
I feel that pay rise and promotions should be linked to attendance in training programmes as well as passing the exams conducted at the end of training.
Also, action should be taken on persons found responsible for incidents in the form of pay cut, collecting or recovering the loss suffered and initiating legal proceedings.
This may look absurd, but without accountability and responsibility, we will continue to see occurrence of incidents for which root cause are already known. They happen only because someone ignored and failed to take precautions.