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Process Safety has been the main focus of Expert's work as he seeks to assist companies avoid accidents completely (by eliminating hazardous materials or processes) or prevent them through providing protection (containment or control). In some circumstances the only available means of increasing process safety has been through mitigation measures. He has been able to assist projects save considerable capital sums by reducing and simplifying equipment, which eliminates potential leak paths and therefore reduces the risk of loss of containment. He has also highlighted the importance of human factors and developed methods of assessing whether the staffing arrangements are adequate to maintain process safety. He has assisted companies with the development of Major Accident Prevention Policy and the associated parts of the Safety Management System to implement the policy.
He has assisted governments in the development of policy and regulations to control activities that give rise to major accident hazards as well as helping industry with the response to regulation by assisting with the preparation of Safety Cases and Safety Reports required under regulations based on EU Seveso and Offshore Safety Directives.
He is currently working with the UK Energy Institute on the development of guidance and training in immediate Emergency Response following loss of containment accidents, with particular focus on actions for front line operators and decision making by their supervisors.
He is also involved with the UK Institution of Chemical Engineers' initiatives in Process Safety, including training courses and books.

Risk Assessment is one of the principal tools that Expert has employed to help companies identify where improvements are required as well as to demonstrate the major accident risks are as low as reasonably practicable - which should be a principle requirement of any Major Accident Prevention Policy. Expert is familiar with all the techniques used in Risk Assessment, including Hazard Identification Methods (HAZID, HAZOP, FMEA, etc) the use of Qualitative and Quantitative Risk Assessment, the application of risk criteria and recent developments of LoPA and SIL assessment.

He has been involved in carrying out quantitative risk analysis (QRA) and developing improved methods since 1981. Projects have included siting studies to assist with site selection, plant layout and extensions to existing facilities for major oil, gas and chemical companies. He has also carried out risk assessments to determine appropriate zones for land use planning around major accident hazard sites and pipelines.

Accident Investigation: Expert has written Expert Witness reports and given advice to:
- Texaco following 1994 PCC (Fluid Catalytic Cracker) incident and subsequent HSE prosecution; including investigation of root causes of the accident (management systems, human behaviour and equipment failures) and development of mitigation arguments advanced in Court.
- the Ladbroke Grove Rail Inquiry on Safety Case Regime, Safety Management System, Group Standards and Accident Investigation. (Client: HSE/Inquiry Secretariat)
He has given assistance on specialised technical subjects to the teams involved with investigating and leading the major accident inquiries into:
- the Kings Cross Fire (1987),and
- the Piper Alpha Disaster (1988) for UK Government.
He has provided analysis of accidents and remedial measures at steelworks for BHP in Australia on two separate occasions following thermal radiation and explosion incidents with multiple fatalities.
He has also carried out investigation and analysis of refinery incidents including Pembroke Cracking Company (1992 and 1999) and Total Le Havre (Vacuum Distillation Column), 1995 – 1997, BP Grangemouth Hydrocracker, 1987.
Expert led the team and participated in providing advice on safety & environmental requirements for bulk liquid storage facilities; then conceptual layout and site selection for new facilities and risk assessment of transport following the major incident at Coode Island in Victoria, Australia.
Following the initiation of Court actions he has provided follow-up advice to legal teams on two major incidents at different pipeline landfall gas plants in Australia.
He gave advice on the avoidance of future problems to Perrier SA following the mineral water contamination.

He provided overall technical, safety and environmental assurance and peer review for a $1.5 billion project during the FEED and permitting stage. The project involved an initegrated gasification plant, pre-combustion CO2 removal, combined cycle gas turbine power generation, CO2 compression, pipeline transfer offshore, platform modifications for use with CO2 to enable Enhanced Oil Recovery and modification of the platform processing to allow for CO2 injection, modified product flow rate and composition.He has provided safety advice on numerous LNG projects, including both LNG liquefaction and export terminals as well as import and re-gasification plants. The advice started with issues of safe plant layout, spill prevention and collection measures and usually led on to final conclusions based on QRA that he managed which could be used for practical advice on design accident loads, fire protection, escape and evacuation. He also dealt with satisfying risk acceptance criteria for both major accidents affecting the public offsite or domino risk to adjacent sites.He worked with developers of brownfield sites to consider how developments could be modified to ensure that future users or occupants would not be subjected to unacceptable levels of risk from major accident sites or pipelines. He had to take account of the views of the Heakth & Safety Executive, codified in a rigid system that did not consider some of the features that mitigate risks. He was able to propose variations on hazardous substance consents or modifications to their conditions that would enable reduced risks to be used in the assessment of risks to the developments, thus achieving consents for developments that would otherwise be rejected.He assisted a bulk liquids storage tank farm operator develop the facility to store larger quantities of flammable liquids whilst reducing offsite risks. As the site became a top tier COMAH site under the Seveso 2 Directive he then assisted with the development of a more formal safety management system addressing major accident hazards including the Major Accident Prevention Policy and the major Procedures required to implement it. He carried out the hazard identification and risk assessment under this policy. He was then commissioned to carry out regular audits of the sites and reviews of the system to ensure compliance and to improve the accident prevention and mitigation measures.
More recently, he has provided advice and performed assessments to assist operators / duty holders meet the requirements of Seveso 3, including assessment of the risks of major accidents to the environment and whether "all measures necessary" are in place to prevent them and/or mitigate the consequences. He has used the UK CDOIF Guidance on a series of liquefied gas facilities.He investigated the details and background circumstances of the 1994 major accident at the Pembroke Cracker on behalf of Texaco. He examined the safety management system, the actions of the operators on the day and the design and management of the plant to determine the root causes and identify where there were gaps in the arrangements for hazard identification, risk assessment and control, where designs could be improved and the training of the operators upgraded. More importantly he was able to help the copmpany rebut much of the HSE prosecution case that followed the accident and ensure that the real lessons of the accident were learned. He assisted with a presentation of the learning points from the accident which was delivered to a meeting of all UK refinery managers or their safety representatives at the Institute of Petroleum after the court case was concluded.