Definitive, CPR Part 35 Compliant forensic investigation for high-stakes litigation. Led by Tom Thompson, a Cardiff University Certified Expert Witness, we provide the technical testimony required for Subsidence Claims, Criminal Prosecutions, and Planning Appeals across the South East.
Vetted by the UK Register of Expert Witnesses
We at Arbor Cultural are able to undertake specialised expert witness work. Our lead consultant, Tom Thompson, provides technical investigation and testimony covering both aspects of the legal system: Criminal Proceedings and Civil Proceedings.

Our lead consultant, Tom Thompson, has completed the Bond Solon Expert Witness training course, run through Cardiff University in conjunction with the Consulting Arborist Society (CAS). This extensive qualification ensures that we meet the rigorous standards required for modern litigation across the United Kingdom. We operate in full accordance with the Code of Practice for Experts, providing high-integrity reports that assist the court in reaching an objective resolution.
It is critical to note that Civil and Criminal elements are completely separate legal tracks. Arbor Cultural Ltd provides specialised technical investigation tailored to the unique procedural requirements of each jurisdiction.
For all civil instructions, we act as Expert Witnesses strictly adhering to Civil Procedure Rules Part 35 (CPR). Our work focuses on dispute resolution and technical clarity for legal firms and insurers.
Examples of Civil Tree Cases:
The criminal equivalent to Part 35 is Part 19 (CrimPR). We provide expert testimony for criminal cases involving local authority prosecutions and regulatory enforcement.
Examples of Criminal Tree Cases:
At Arbor Cultural Ltd, we understand that an Expert Witness’s primary duty is to the Court. We provide unbiased technical advice within the framework of the law.
An expert's overriding duty is to provide independent and objective assistance to the court. Our reports are trial-ready, clear, and defensible under cross-examination.
We utilise diagnostic equipment like sonic tomography and root analysis to remove guesswork from litigation, allowing solicitors to proceed with confidence.
We ensure every report includes necessary declarations and summarizes material facts according to current court rules.
Tom Thompson is available to provide oral testimony, presenting complex concepts to a Judge or Jury with technical precision.

Lead Consultant & Cardiff University Certified Expert Witness
Arbor Cultural is led by Tom Thompson, a highly qualified arboriculturalist with over 20 years of technical experience. His Bond Solon training through Cardiff University provides the legal literacy needed for court proceedings.
His vetting by the UK Register of Expert Witnesses, NEWA, and CAS provides legal teams with the confidence that their instructions are handled by a verified professional.
Download Professional CV