Gerard van Schaik security expert

Gerard van Schaik

The Team

Gerard van Schaik started his career with the Dutch police. There he worked for more than 26 years, 20 of which in the fight against serious crime. First as manager of an arrest team and then as head of the Criminal Intelligence Department (CID). During that period, he was involved in several large-scale police investigations.

After these years of experience, Gerard continued his career in business as manager “Corporate Security & Investigations” at a large international financial institution. He was responsible for the company's international security policy, as well as the actual security of senior management.

Because of the international aspect, Gerard worked closely with security staff from various countries and led several crisis situations. He was involved in situations involving threats against the company, employees and board members. He made risk management plans, guided concrete security interventions and developed preventive measures. Where necessary, Gerard worked closely with external experts and consultants, growing his interest in the behavioural aspects of his field.

Gerard's many years of practical experience, combined with his analytical thinking skills and experience in working with behavioural experts, enable him to support organisations facing complex security and threat situations and provide them with concrete actionable advice. This unique expertise gained in an international context is of great value to DANTES.


Rob Pel sociale veiligheid

Rob Pel

The Team

Rob Pel has over 40 years of experience in the safety sector, 26 of which in higher education. He has done pioneering work in the field of social safety within higher education. At the Vrije Universiteit Amsterdam he developed and implemented the first 'expert team social safety & concerning behaviour' in Dutch higher education.

Inspired by scientific insights, he introduced, among other things, the role of social safety director, a proactive position aimed at supporting, advising and guiding staff and students with complex problems. In this role, he gained extensive experience in working proactively on complex social safety issues, in collaboration with a broad internal and external network.

For Rob, dealing with casuistry is not only about a multidisciplinary, independent assessment of casuistry, but also about working with those involved to find sustainable solutions. He now applies the proactive and preventive approach he introduced at VU University in his work for educational institutions but also to organisations in other sectors.

Rob plays a key role in developing and implementing ‘social safety teams’ that DANTES specialises in. He also provides incident support and advises organisations on how to take preventive action. His years of experience are of great value when the outcome of a psychological risk or threat analysis needs to be translated into concrete, feasible security interventions and measures.


Rose Cunliffe DANTES

Rose Cunliffe

The Team

Rose is the office manager at DANTES. Born and raised in South Africa, Rose has qualifications in travel and tourism (national and international) and work experience with tour operators, conference organisations, administration and finance. After her studies, she began her career as an operations coordinator for small business tour operators, coordinating transport, accommodation and tours for private holidaymakers, business groups and conferences, among other things.

Between 2006 and 2015, Rose was a professional wheelchair tennis player and represented South Africa in that capacity. This position provided a lot of international experience. Besides the intense sport, Rose held several positions on the national board of Wheelchair Tennis South Africa.

After her career as a professional athlete, Rose worked as an accounts payable manager for an international hotel. In this position, she supervised suppliers and maintained business relations with them. She also processed all financial information, coordinated the department and reported weekly to the management. Rose worked in this position for seven years.

Rose is friendly, respectful, dynamic and believes it is important that she does her work meticulously and accurately.


Marijn Tingen psycholoog DANTES

Marijn Tingen

The Team

Marijn Tingen is a psychologist and obtained his Msc. in clinical psychology at Utrecht University. He has worked at several organisations in the role of behavioural expert and currently works as a psychologist at a large Penitentiary Institution in the Netherlands. Here, he deals with the mental health of detainees, as well as risk assessment and management in the context of reintegration.

Marijn supports DANTES in threat assessment and risk assessment. He is currently training to become a healthcare (GZ) psychologist.

Marijn has a strong affinity with financial-economic crime, and has been working on this topic at DANTES for several years. He conducts scientific research on this subject and aims to further develop these services within DANTES. Currently, this involves both providing training, giving advice and developing a screening tool to identify the possible risks of a given personality profile. In collaboration with Bram Van der Meer, Marijn conducted a scientific literature study on personality profiling of white-collar criminals.

Marijn teaches the “European Certified Compliance Professional (ECCP)” course as a guest lecturer at the Frankfurt School of Finance & Management. Together with Bram van der Meer, he lectures on “Screening & International Compliance Culture”.


Simon Oleszkiewicz interviewtechniek

Simon Oleszkiewicz

The Team

Dr Simon Oleszkiewicz is a psychologist with a PhD from the University of Gothenburg (Sweden). He did his postgraduate studies at Iowa State University (USA) and worked as an assistant professor at the University of Twente and at the Vrije Universiteit Amsterdam. In 2018, Simon received the Early Career Award from the European Association of Psychology and Law.

Simon is an expert on interview technique and intelligence gathering. Commissioned by the US Federal Bureau of Investigation (FBI) and CREST, he conducted in-depth research on these topics and his publications have been included in several leading academic journals. His research work and publications focused on the Scharff interview technique, the presentation of evidence in forensic interviews, strategic use of evidence, the working relationship between interviewer and interviewee, trust, adaptability and “undercover” operations.

Simon remains involved in scientific studies but is also interested in the applied value of his academic work and its operational relevance. He puts his unique knowledge to use in DANTES case studies where thorough and reliable intelligence must be gathered to assess threats and risks in the workplace. His operational contribution is also crucial in cases where complex interviews need to be conducted.

Simon provides training for both the public and private sectors on strategic interviewing, psychological aspects of information gathering and intelligence assessment.


Inge Nijenhuis psycholoog vertrouwenspersoon

Inge Nijenhuis

The Team

Inge Nijenhuis is a psychologist and obtained her MSc. in clinical psychology from Leiden University. In 2018, she expanded her knowledge by training as a holistic coach.

From 1998 to 2023, she worked in business. She held various directorial roles, including in business consultancy, project management and service management. Inge gained extensive international experience in personal collaboration, the functioning of operational teams and stakeholder management. She was HR responsible for employees in leadership and management positions. Central to her work was the guidance and development of these employees. In addition, Inge regularly provided support and advice when employees had conflicts with each other and focused substantively on developing leadership and professional responsibility.

At DANTES, she uses her knowledge and experience when organisations are faced with behavioural and social safety issues of concern. In cases of employee conflict or when employees are in crisis, she uses her skills to help these employees return to a healthy work situation where they can feel safe and be productive again.

In the development and implementation of ‘social safety and caring behaviour teams’ that DANTES provides for organisations, Inge plays an important role and her years of management experience and research into the functioning of operational teams are of great value.

She has a specific interest in developing coaching programmes for employees who display transgressive behaviour, cause unsafe situations and have resistance to change.

Inge provides training and workshops on effective communication, psychological de-escalation, psychological resilience, and managing power. She also supports organisations as an external confidential counselor, providing an independent and secure point of contact for employees with concerns about social safety, integrity, and inappropriate behavior.


forensisch psycholoog dreigingsanalyse

Bram B. Van Der Meer

The Team

Bram van der Meer is a psychologist and owner of DANTES. He studied criminology at the University of Pretoria, South Africa and obtained his MSc. in clinical and forensic psychology at Leiden University. He took postgraduate courses with international investigative organisations in psychological offender profiling, interview technique and psychological threat analysis. He further specialised in the psychology of detection.

Prior to his work at DANTES, Bram was a forensic psychologist at a clinic for detainees (TBS) and also a ‘free-lance’ judicial expert. He then worked for more than ten years as a behavioural consultant at the national unit of the Dutch Police.

In his consultancy work for criminal investigations, he focused on offender profiling, advising on complex interrogations and psychological threat analysis. Bram was often involved in national and international investigations into serious violent crimes, domestic violence, stalking and threats aimed at public figures. From this position, he worked closely with investigation teams and with the Royal and Diplomatic Security Service of the Dutch police.

In 2011, Bram started his own research and consulting firm and he has since gained extensive case and training experience in both the private and public sectors and in higher education.

Bram is a guest lecturer in interview technique and integrity research at the Frankfurt School of Finance and Management, and at the Dutch Police Academy he teaches psychological threat and risk analysis.

Bram is a member of the editorial board of the Journal of Threat Assessment and Management accredited by the American Psychological Association. He is the former president and current vice-president of the Swiss-based Association of European Threat Assessment Professionals (www.aetap.eu).

Bram is involved in scientific research projects on anonymous threat, workplace violence, interview technique and white-collar crime. He has published in scientific journals and textbooks on these topics.


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