HSE-work has evolved radically throughout time. However, our framework for how to solve problems and improve doesn't seem to have changed that much since the 70's. Back then the most important thing an HSE executive could do was to create the perfect policy. The idea was then that if the perfect policy was made, then we would also succeed in achieving the highly sought after "zero-culture". By having the perfect policies and procedures an organisation would simply succeed in having zero accidents, incidents, and service quality issues. Unfortunately, that isn't the case, and even worse, many organisations still operate like as if this was the truth.
Humans DO make errors. Regardless of how perfect our policies and procedures are. Regardless of how much work we've put into them. It's simply part of being human. So, instead we need to focus on how we can address and reduce these human errors directly at the root!