Drug Valuations

We are leading experts on drug-trafficking cases and those borderline cases where it is suggested that the quantities recovered are indicative of supply rather than ‘personal use’. We frequently provide evidence on drug valuations, cannabis production cases and increasingly cases brought under the Proceeds of Crime Act.


Areas which we cover include:

Valuations of the most commonly used illicit drugs from street-level to importation.

Proceeds of Crime Act (POCA) challenging benefit figures involving drug valuations.

Evidence of opinion on quantities of drugs commensurate with personal use.

Assessment of cannabis cultivation cases regarding plant type, potential yields, cost and levels of sophistication.

Interpretation of alleged dealing or ‘tick’ lists, text messages, drug slang and terminology.

Examination of drugs packaging and paraphernalia.

Interpretation of covert recordings.

Strength and effects of drugs.

Interpretation of Text, What’s App and Face Book Messages.


Allen Morgan is considered a leading drug expert witness in drug trafficking and cannabis production cases. He holds a Masters degree in drug use & addictions and is a member of the Expert Witness Institute.

His academic background is underpinned by 14 years practical experience as a serving Police Officer specialising in the drugs field and provides him with a unique profile. His service in the police has involved him in the investigation of the full spectrum of drug related offences from simple possession through to enquiries involving the importation of illicit drugs into the UK and investigations involving the large scale production of cannabis.

His extensive experience has led him to work throughout England and Wales from some of the most deprived inner city areas to rural districts. This enables him to comment on drug network variations and valuations throughout the UK.

Allen has presented expert evidence in drug trafficking trials for over a decade. He has presented written and oral evidence on hundreds of occasions at lower and crown courts throughout the country and is a leading and authoritative expert on drug matters.

He has a particular interest in cannabis production and medical cannabis cases. Allen was previously licensed by the Home Office to produce cannabis and continues to research with leading academics drug networks and drug valuations.

Allen is increasingly instructed to review cases involving POCA where the benefit figure includes drug valuations. Allen has achieved significant reductions in benefit figures where drug valuations are found to be excessive, in some cases reducing valuations by hundreds of thousands of pounds.

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