Expert Witness Journal Issue 65 February 2026 - Flipbook - Page 57
of the drug having been e昀昀ectively removed by the
body, leaving only the breakdown product behind. In
other words, whereas to commit an o昀昀ence of excess
alcohol requires you to actually be intoxicated,
having consumed alcohol a short time before, to
commit an o昀昀ence of drug driving requires you
simply to have had a drug possibly up to days before
hand. No intoxicating e昀昀ects at the time of driving
or arrest may be present. For example, regular users
of cannabis are probably permanently in excess of
the limit for driving with drugs, making it extremely
easy to commit the o昀昀ence.
Mr Ian Broughton
Illicit drugs and firearms
Urban street gangs and street slang
Ian is the founder and director of Expert Witness Services Ltd, and the former
Specialist Drugs Advisor and the Lead Expert Witness Coordinator of the Metropolitan
Police, London, U.K. A former New Scotland Yard detective with unparalleled
experience of the illicit drugs trade within the U.K. and beyond.
It is easy to avoid committing an o昀昀ence of
drink driving – simply do not drink more than a
reasonable quantity shortly before you are about to
drive. A reasonable quantity is not necessarily very
much, but it is something, and a short while before
you drive may mean only a few hours. This advice,
however, will not work with those who consume
drugs.
Ian has over 34 years experience of drugs and firearms investigations as both the
lead investigator and supervisor and over 20 years experience in performing the
role of the Expert Witness. Highly commended by the Metropolitan Police, the
National Crime Agency, and Judges in criminal trials, you can be assured that you
are receiving genuine expertise in a unique and dynamic field.
Ian's areas of expertise are extensive and are the primary reasons why he was invited
onto many national working groups and committees. From social supply to street
dealing, county lines to encrypted communications and Organised Crime, Urban street
gangs and street slang to the Chemsex scene, illicit drugs labs and cannabis cultivation.
What we seem to have is a huge number of people
being prosecuted for drug driving in circumstances
where many, perhaps most of them, are not actually
showing signs of intoxication at all.
Ian is the lead trainer at Expert Witness Services and continues to deliver Expert
Evidence and Drugs Awareness training to U.K. Police Services. The feedback received
from serving police officers and staff speaks for itself and can be viewed via the website.
Contact Name: Mr. Ian Broughton
Tel: 07863 166 363 - Website: www.expertwitnessservices.co.uk
Email: admin@expertwitnessservices.co.uk
Area of Work: Nationwide & International
Given the above, the high reo昀昀ending rates for drug
driving should be neither a shock nor a puzzle.
Mrs Robyn J S Webber
Consultant Urological Surgeon
MD, FRCSEd (Urol)
Consultant Urologist based in Fife, Scotland.
Dr Danny Allen
My medicolegal areas of interests are; personal
injury, pelvic and genitourinary trauma, clinical
negligence in all aspects of urological surgery,
including delayed diagnosis and complications
related to implanted surgical materials.
Consultant Adult & Addictions Psychiatrist
MB BS LLM MRCGP MFFLM FRCPsych MEWI MAE MIoD
Dr Allen works for Allen Associates, which is a group of
psychiatrists and psychologists dedicated to excellence in
report-writing providing reports on adults for all courts, tribunals
and regulatory bodies. We do undertake some legally aided work.
Mrs Robyn Webber
P O Box 29237, Dunfermline KY12 2DZ.
Telephone: 07915 423924
Email: medicalreport@btinternet.com
Tel: 0870 162 0671
Email: enquiries@allen-associates.com
Website: www.allen-associates.com
Address: Allen Associates, Suffolk House, 54-55 The Green
Wooburn Green, High Wycombe, HP10 0EU
Area of work: United Kingdom
EXPERT WITNESS JOURNAL
55
FEBRUARY 2026
