Jop Groeneweg is a human factor specialist at Leiden University with more than 30 years experience in a range of industries. He started his career investigating causes and backgrounds of marine accidents. In the mid eighties his field of interest moved to the petrochemical industry where he was involved in a project aimed at giving the Royal Dutch Shell plc safety performance new momentum. A research team including Manchester and Aberdeen Universities together with Shell developed a range of tools were that are now main stream in the industry (e.g. Tripod, the Hearts & Minds tools, the Life-Saving Rules). More recently he was involved in a project together with the Dutch Research Institute TNO aimed at developing a process approach to Learning from Incidents. Many organisations could prevent so-called recurrent accidents if the would effectively implement the lessons from incidents. This is not a matter of buying a better investigation method but requires management of the process staring with reporting the incident to measuring the effect of the interventions. His latest research involves transferring knowledge for the petrochemical domain into health care and vice versa. Patient safety is an area where much can be gained using the tools developed in the oil and gas world while the experience of hospitals to deal with complex organizational settings could benefit the rest of the industry. As an advisor he helps organisations to identify the strong and weak points in the way they manage safety and helps them to structure their efforts in a more efficient and effective way to improve safety.