Trainer profiles


Name: Bob Fox
Accredited Tripod BETA practitioner / trainer/ assessor
Location: Durban, South Africa
Bob is a Strichting Tripod Foundation and Energy Institute accredited Tripod Beta Trainer and by invitation of the STF Board, an appointed Assessor. His association with Tripod Beta stretches back to 1990s where his technical knowledge of road tanker operations was key to understanding operational incidents. Bob joined Shell Southern Africa in 1986 as LPG Engineering Coordinator moving into Distribution Operational Training 18 months later. A function he managed until 1998 when he founded BOHIKA CC, a risk management and learning consultancy. Africa is known to be a hostile working environment and over the years Bob facilitated numerous Tripod Beta Incident Investigations and Analyses on behalf of Shell SnA and its many contractors. Most were transport related incidents, some with multiple fatalities. Other incidents include, armed robberies, falls from height, aviation refuelling, large product spills, tankage overfills, operational disturbances with and without injury.
Bob has had an association with the Shell Open University since 2004 delivering face to face and online learning events. He has worked with several other companies using Shell or similar HSE Management Systems. Bob has delivered Tripod Beta Workshops in Europe, Africa, middle and far eastern countries.

Name: Uche Davidson Igbokwe (Shell internal trainer)

Lead Incident Management SME & Learning From Incident (LFI) Coordinator for Sub-Sahara Africa (UIG), ShellProfile:Uche has 24 years of Oil & Gas industry experience (as of 2013): 2 years with Intel Services (NICOTES) as Logistics Base Operations Supervisor for Oil & Gas companies and 22 years with Shell (1 year National Service & 21 years of employment).  Uche joined Shell in April 1992 in its Supply Chain department, Nigeria and worked as Fleet Control Supervisor, Land & Marine Transport Admin Supervisor, Procedures / Systems Analyst, Senior Field Operations Supervisor (including rig-move co-ordination and rig supplies – Heavy & Medium equipment).  Between 1997 and 2005 Uche transferred to the HSE department as Safety Advisor in the HEMP Team and HSE Management (Environmental Audit and ISO 14001). Team Leader – HEMP & Hearts & Minds, a role he was playing until his departure to Brunei Shell Petroleum in July 2005. At BSP Uche worked as Senior HSE Advisor in charge of Operations Services Departments (Land Transport, Air & Marine Logistics, Campaign, Engineering & Operations Capability/Maintenance) from 2005 to 2006. He became in charge of Technical Services Departments HSE deliveries (Geophysics, Studies / Developments, Geomatics, Exploration, Well Engineering & IT) from 2007 to 2010. Returned to Shell Nigeria (SPDC) in January 2011 to take up the Leadership of Incident Management SME and Learning from Incidents Coordination and embedment for Shell Companies in the Sub-Sahara African region (UIG).

Uche has a Ph.D –Leadership (Preston University, California, USA); a PCBR –Business Research (University of Southern Queensland - USQ, Austalia); an MBA –  Management (Rivers State University of Science & Technology, Port-Harcourt, Nigeria); a BSc. (Tech.) – Maritime Technology (Federal University of Technology, Owerri – FUTO); and an OND – Accountancy (Federal Polytechnic, Oko [Formerly, Anambra   State Polytechnic], Oko)  
Uche is certified by NEBOSH, UK and a member CIPS, London and NISP, Nigeria.


Name: John Sharp
Accredited Tripod BETA practitioner / trainer/ assessor
Location: Perth, Western Australia

Contact:, +61419833953 or via website


John was accredited as one of the founding Tripod Assessors in 2000 and is an accredited Tripod Beta Trainer. He holds an Executive Certificate in Occupational Safety & Hygiene as well as Certificate IV in Training and Assessment. John designed the first Tripod Beta training course to be compliant with adult learning principles and much of his material forms the basis of the accredited training programs that exist today. John is a high performance coach facilitator with over 40 years experience in industry, including oil and gas and shipping and stevedoring both in Australia and overseas. He also has extensive experience in designing and facilitating health & safety initiatives and was instrumental in creating Woodside Energy’s Health, Safety & Environment competence model. He has developed a number of world-class behavioural based training programs to deliver those competences. He also has considerable experience in Industrial Accident Investigation and has worked as a consultant in this area with companies around the world including Shell, Petronas, Anglo Gold, Basel Chemicals, New Zealand Refining Company, Woodside Energy, Sinclair Knight Merz, John Holland and Mermaid Marine. John’s last management assignment in the oil and gas industry was at the BP Hides Gasfield in Papua New Guinea where he was the Joint Operations Manager for BP.

Testimonial: "I attended training run by John for Tripod Beta Practitioners in 2005 (incident investigation & latent failure analysis, held in Malaysia), to upskill but also to evaluate the course for use in the company I worked for in New Zealand. John structured the training pragmatically & efficiently with a good balance of theory & practice. John's manner of delivery was organised, relaxed & extremely knowledgeable. Subsequent to this John was contracted to provide this training to selected personnel of the company I worked for in NZ, and the course was exported to NZ for this purpose. Feedback obtained from the participants of this training was very positive. A worthwhile & focussed training programme run very professionally" Brent Fougere, HSSE Advisor – Shell Todd Oil Services, NZ

East Asia

Name: Mark Cowan  

Location: Kuala Lumpur, Malaysia


Contact:, +6 0123596844 or via website


Mark is a Process Safety and Human Factors engineer providing technical training and support to a variety of major accident hazard industries both regionally and globally.  He has over 20 years of operational and design engineering experience which has enabled him to deliver a range of “open” and client specific training covering a range of process safety, behavoural assessment and incident investigation specialisms.  He has been actively involved with Tripod Beta since 2003 and has both delivered an extensive range of courses and actively participated as an investigation leader for a number of incidents.


Name: Peter Berlie  DipM MEI MIOSH RI
Accredited Tripod BETA practitioner / trainer/ assessor
Contact: Kritericon B.V. @: M: +31 653 310 389  
Mail: P. O. Box 38250 NL6503 AG Nijmegen Netherlands

Peter is an experienced incident and risk management analyst, management consultant, teacher/coach, and a certified information architect, specialising in: business process (re)design and information architecture; strategic, information & communications related consulting; risk assessment and -analysis & teaching analytical techniques.  His over 35 years of business experience include a broad variety of management and consulting positions at IBM (Europe), NCR Corp. (EUR), Compuware Corp. (US) and META Group (US, EUR). He co-founded META Group Consulting Europe, founded the NL subsidiary, and was managing consultant of META Group™ Consulting (MGC), -a reintegrated spin-off of Gartner Group(US)-, before developing into an independent risk and incident management teacher, coach and consultant. He has global experience in teaching incident and risk analysis, organisational culture development and organisational learning as well as a decade of experience coaching (industrial/ transportation/ medical/ financial/ insurance) incident investigations, and has proven tutoring capacities in French, English, German and Dutch.

Peter is certified as:

  • META Group™ Management Consultant (US)
  • Tripod (BETA) Incident Analysis expert, as Assessor/teacher with Stg. Tripod Foundation
  • a risk management coach-consultant, and as ‘principle enterprise information architect’ (SCIA International Register),
  • registered Information Scientist (RI) with the Vereniging Register Informatici (VRI) in NL,
  • a professional Member of The Energy Institute (MEI) and  (associate) Member of IOSH, in the UK.
  • a qualified Bow-Tie teacher/consultant, Hearts & Minds teacher/consultant, a TapRooT® Teamleader and has been working as certified as TOP-SET® senior Investigator and tutor.

He is initial member of the (Advisafe) International Incident Investigation Flying Squad (AIIFS) and is founder, owner and managing analyst of the independent consultancy Kritericon B.V.(NL).

Name: Oscar Diederich
Consultant / Trainer at AdviSafe Risk Management BV
Location: Netherlands


Profile:Oscar studied Electronics (MBO) and Mathematics (HBO). After his studies he held various positions in the IT sector. During his role as ICT coordinator at AdviSafe Consultants (1996-1999) Oscar was closely involved in the development and automation of Tripod Delta questionnaire process and 'DeltaBase'.  Since 2006, Oscar has worked for AdviSafe Risk Management as consultant / trainer. His projects are mainly focussed on training and implementation of BowTie, Tripod Beta and safety culture and behaviour programmes. Oscar has been member of the AdviSafe Flying Squad since 2007. The Flying Squad is a pool of investigators that is on standby 24/7 ready to be deployed on demand in the event of a process disturbance (often an accident), world wide.  As consultant, trainer and lead investigator Oscar has gained international experience in the oil and gas E&P (on-and-offshore), chemical industry, food refinery, power (thermal & wind), offshore logistics, aviation, government (transportation & infrastructure) and the rail industry.

Name: Ed Janssen
Ed Janssen Risk Management Consultancy
Accredited Tripod BETA practitioner / trainer/ assessor
Location: NetherlandsContact:
Vos de Waelstraat 34
6931 TW Westervoort
tel. +31 (0)26 3211416
Profile:Ed is accredited assessor, trainer and practitioner for Tripod Beta, experienced trainer and consultant for BowTie Risk Analysis, and Hearts and Minds programme. Ed Janssen studied chemical technology, inorganic materials at the Technical University Twente in the Netherlands and has over 25 years working experience with Shell. Prior to 2000, Ed was HSE policy advisor at Shell, responsible for development and coordination of HSE management systems. In that context also involved in the first developments of the Bow Tie risk analysis methodology, Tripod Beta accident analyses methodology, pro-active Tripod Delta and the Hearts and Minds programme. Since 2000, Ed has been an active independent consultant and trainer in the area of risk management systems, organisational culture and incident investigation acting in a network of specialists. In addition he was the lecturer and consultant to the Shell E&P Learning Centre for many HSE courses delivered by the center.

Name: Ken Maddox
Accredited Tripod BETA practitioner / trainer/ assessor

Location: Aberdeen, UK


Contact: via website


Ken is an accredited Tripod Assessor and Tripod Beta Trainer. Ken first made use of the Tripod Beta principles in 1989 while working for Shell, and has been an accredited Tripod Beta Trainer since 2005. Ken started his career on large steam turbines with English Electric and worked on several power stations in the UK and the Middle East. He joined Shell International Exploration and Production in 1971 and worked for 28 years in many locations around the world. Ken worked for four years in Shell’s HSE department in Aberdeen, and was project leader for Shell’s two year, £10M major overhaul of the North Sea operations permit to work system following the Piper Alpha disaster. Ken then worked for five years in Shell’s international training centre in the Netherlands, before starting his own training and consultancy company EPEX in 1999. Since then Ken has delivered more than 100 Tripod Beta courses in more than 25 locations around the world.

Name: Jan Pranger MSc., MoSHE
Accredited Tripod Beta Practitioner/trainer
Location: Velserbroek, The Netherlands
Contact:, +31 6 50290719,, Profile: Jan Pranger is an STF/EI accredited Tripod Beta Practitioner and Trainer. After his MSc. of Chemical Technology at the Delft University of Technology, he started his career at a major international engineering consultancy company. He acquired there extensive consulting and design skills in many branches of industry during 12 years. After completion of his Master of Safety, Health and Environmental (MoSHE) degree he focuses on safety, mainly in the field of process technology. Besides Tripod Beta, Jan Pranger practices in other general safety disciplines such as risk analyses (HAZOP, HAZID, BowTie, QRA) and management consulting.

Name: Tamara Wolsak, Consultant/Trainer
Location: Netherlands
Tamara studied Social and Organisational Psychology with a focus on human error and Tripod Beta. She is an accredited Tripod Beta trainer and practitioner and works for AdviSafe as a trainer/consultant. Her projects are mainly focused on incident investigation and analysis with the use of Tripod Beta, risk management, auditing and competence management. Tamara has been a member of the AdviSafe Flying Squad since 2006. The Flying Squad is a pool of investigators that is on standby 24/7 ready to be deployed on demand in the event of a process disturbance (often an accident), worldwide.  As consultant, trainer and lead investigator Tamara has gained international experience in a range of industries.

Name: William Wiseman
Accredited Tripod Beta Practitioner/trainer
Location: UK
Contact:, +79147594851,

An experienced Maintenance and Reliability Engineering Manager. Have experience of both maintenance execution management roles and maintenance/reliability functional support roles. Experience in the Marine, Nuclear and Oil & Gas industry. I am dedicated to the drive for best in class maintenance and operational excellence through failure analysis, defect elimination, the establishing of quality maintenance and reliability management systems, delivery of Reliability Centered Maintenance projects (Aladon Network certified RCM2 facilitator) and Preventive Maintenance Optimisation. I am a Stichting Tripod Foundation Accredited Tripod Beta Practitioner and Trainer, with a passion for improving Process Safety through quality analysis and implementation of corrective actions to prevent recurrence of Tier 1 Process Safety Incidents. Experienced facilitator and trainer of Apollo Root Cause Analysis and Causal Learning methodology.

North America

Name: John Sherban, P.Eng.
Accredited Tripod BETA Practitioner / Trainer / Assessor
Systemic Risk Management Inc.
Location: Calgary, Alberta, Canada
Contact details:
tel. +1 403 239 4650
Profile: John Sherban has over 30 years of experience in a wide range of petrochemical and electrical utility business activities. Whilst employed in Canada and as international engineering staff with Shell in the Middle East, Europe and West Africa, John held a number of increasingly senior leadership roles. He has worked and travelled extensively and appreciates the importance of professionalism, cultural understanding, impeccable objectivity and thoroughness in all of his endeavours. John’s work focuses on helping large organisations improve their organisational effectiveness through the proper implementation of various tools important to risk management. These include Tripod BETA incident analysis, BowTieXP proactive risk assessment and the suite of Hearts and Minds tools. Utilising his engineering training and experience, John is able to integrate highly technical cause and effect relationships with more diverse probabilistic human performance factors. John’s belief is that understanding and maturing an effective organisational culture is the route to improved overall business performance.