Independent forensic toxicology

Forensic toxicology for drink and drug driving cases.

Court-compliant expert reports for solicitors, barristers, insurers and private individuals, across the UK and overseas territories.

700+ witness statements authored MSc Forensic Science (Distinction) Hiscox insured · CJSM affiliated

Alcohol and drug driving casework

ATXpert provides technical defence reports across drink and drug driving charges, setting out what the science does and does not show for the court.

Drink drive · Drunk in charge

Alcohol technical defence

Blood, breath or urine alcohol calculations that estimate your likely level at the time of driving from your record of consumption.

  • Post-driving drinking & failure to provide
  • Laced drinks & device malfunctions
  • Medications, acid reflux & procedure
Alcohol defence details
Drug drive · Drug in charge

Drug technical defence

Interpretation of blood, breath or urine drug levels, comparing your account of consumption against the toxicology to assess consistency and likely levels.

  • Post-driving & unwitting consumption
  • Passive exposure & effect of medications
  • Analytical data pack review
Drug defence details

Charges we assist with

Driving over the limit (S5 / S5A) In charge over the limit Driving whilst unfit (S4) In charge whilst unfit (S4) Failure to provide a specimen

Who instructs us

Solicitors

Fast, defensible reports to build and test your client's case.

Barristers

Expert evidence and testimony, in person or by video link.

Private individuals

Independent, plain-English advice on where you stand.

Insurance companies

Objective toxicology for civil and coverage disputes.

Free tool

What penalty am I facing?

Answer a few questions and our penalty calculator shows the likely starting point, sentencing range and disqualification a magistrates' court would work from, covering drink driving, drug driving, failure to provide and in-charge offences.

Case types we cover

Toxicology evidence matters wherever alcohol or drugs are in dispute, not only in criminal proceedings.

Criminal cases

Technical defence for the full range of drink and drug driving offences.

Civil cases

Independent toxicology reports for disputes and litigation.

Unfair dismissal

Interpretation of workplace drug and alcohol testing results.

UK & overseas

Instructions accepted across the UK and overseas territories.

How to instruct us

01

Get in touch

Call or email your requirements. You'll receive free initial scientific advice and a free, no-obligation quote.

02

Instruct ATXpert

Send the case papers and disclosure. We agree the scope, format and timescales that suit your matter.

03

Receive your report

A clear, court-compliant expert report, with testimony available in person or by video link.

Credentials and experience

Qualified, insured and experienced in court

ATXpert is led by Alex Bretherton, an independent forensic toxicologist who has authored over 700 witness statements and given evidence in courts across the UK.

700+
Statements authored
9+
Years in forensics
UK-wide
& overseas territories
Hiscox Indemnity insured CJSM Secure email
MSc Forensic Science (Distinction)
King's College London
BSc (Hons) Pharmacology
University of Bath
Bond Solon Courtroom Skills
Expert witness training
Dr Ann Priston (OBE) Award
Expert witness award

Talk to us about your case

Whether you are a legal professional or facing a charge yourself, a short conversation will tell you whether the science can help, at no cost or obligation.