Expert Witness Consultancy

Expert WitnessDirector Trevel Henry is experienced in providing Expert Witness Consultancy service in the provision of written reports, criminal/civil court, inquest hearings, tribunals.  Pre-planning risk management support and post-incident guidance are also offered.  Contact us

Trevel has been actively involved as a training consultant in the prevention, de-escalation, resolution and management of challenging, aggressive and violent behaviours since 1994; including the use of physical intervention techniques, skills including the use of relevant organisation personal protective equipment.

Trevel is an active Board member of the Institute of Conflict Management (ICM), who were established with the support of the Health & Safety Executive in 1997 and fully incorporated as a national body in 2000.  The ICM act as the Secretariat to the All Party Parliamentary Group on Work-related Violence and Bullying for the House of Commons.  In 2003 the HSE funded the ICM to set national training standards to provide trainers with a structured accreditation and CPD process.  This was followed by the introduction of the ICM Quality Award Centre (QAC) process which allows training providers the opportunity to provide evidence of compliance with the Department of Health (DoH) 2014 document: Postive and Proactive Care – reducing the need for Restrictive Interventions, and NICE Guidance: the Short term management of disturbed/violent behaviour.  The DoH 2014 document references the ICM quality awards standards.

As an expert witness, Trevel continues to provide advice, support and guidance to numerous organisations and bodies relating to the use of force, physical interventions including the use of personal protective equipment.  He has been instructed in numerous cases regarding restraint related injuries and/or deaths, involving incidents relating to the Police Service, Prison Service, Scottish Police Service, Scottish Prison Service, Security Industry Authority, Home Office, Young Offenders Secure Institutions, Independent Police Complaints Commission (IPCC); now the Independent Office for Police Complaints (IOPC), Health & Social Care and across other work-related sectors.

Trevel initially acquired his training qualifications, knowledge and experience through twenty-years of employment delivering training to Kent Police officers and staff.  Whilst working at Kent Police he became a member of the Police National Practitioners Group for Personal Safety Protection, a sub-group of the National Police Chief’s Council’s, Conflict Management Portfolio Group.  It was at this point that he acquired a significant development of expertise regarding legislation, policies, procedures, risk assessments, training and post-incident management and welfare review of work-related violence incidents.

Having been a representative of a number of previous panels (ie; Skills for Security, ICM representative at the All Party Parliamentary Group re Work-related Violence), Trevel is a current representative of on a number of institutional panels/groups aimed at addressing the prevention and management work-related violence.  These include:

  • The Security Industry Authority expert group reviewing the specifications within the SIA’s licence-linked qualifications for management work-related violence, aggression and the use of reasonable force.
  • ICM Board Meetings – Lead role for the Justice Sector Group of the ICM, towards the continued professional development for ICM members working within that sector.
  • NHS Trusts – review, advice and guidance regarding policies, procedures and working practices, including search (person and environment) procedures for staff employed within medium and secure forensic settings.

High-profile cases Trevel has worked on include:

  • Restraint related death involving police officers in England
  • Restraint related death involving Door Supervisors in Essex
  • Restraint related death involving prison officers in a Scottish prison
  • Allegations of abuse at a Young Offenders Secure Training Centre
  • Compiance failures within Care settings resulting in injuries to staff


During his career he has delivered training, presentations and talks to a range of operational and support staff across the UK, Europe, South Africa, Canada, USA and the Caribbean.

Publication – a co-author of the report ‘Occurrence of Injury During Officer Safety Training at Kent Police’.  Published in the Police Journal, Volume 82, Issue 3 dated 1 September 2009.

Media appearances – Trevel has undertaken interviews for TV and Radio discussing; a) law and legislation relating to the use of reasonable force and, b) the physiological and psychological effects of fear and stress upon the human body.

For more information on our Expert Witness Consultancy services available across the UK, please contact the team at NVC Awareness today