Description

Mr Gary Carroll

Drug Trafficking & Data Interpretation Expert

With over 14 years’ policing experience, and 11 years as a full-time Expert Witness, Gary Carroll specialised in investigating serious drug-related crime, including County Lines, Organised Crime Groups (OCGs), local and national drug supply networks, and complex drug production investigations.

Gary has worked as an Expert Witness throughout the Midlands, providing independent expert evidence for criminal proceedings. During his policing career, he served as a Controlled Drugs Liaison Officer (CDLO), specialising in the regulation, management and enforcement of controlled drugs within healthcare settings.

Gary has extensive expertise across both illicit and controlled drug markets, with particular specialist knowledge in Medicinal Cannabis. He has acted as an advisor to several UK companies operating within the medicinal cannabis sector.

Mr Dean Mowbray

Expert Witness – Organised Crime & Drug Trafficking

Dean Mowbray brings over 20 years of policing experience, including 15 years as a detective specialising in organised crime and drug trafficking investigations across every level of the supply chain.

A qualified Detective Sergeant, Dean investigated County Lines operations, Organised Crime Groups, local drug supply networks and sophisticated drug production cases, concluding his policing career with the Regional Organised Crime Unit.

Dean provides independent expert witness services in relation to all major illicit drug types, with additional specialist expertise in Image and Performance Enhancing Drugs (IPEDs). He also delivers bespoke training and CPD events for law enforcement professionals and partner agencies.

Areas of Expertise 

Our experts provide specialist evidence and advice in relation to: 

  • Street-level to national drug supply networks  
  • Drug valuation and market analysis  
  • Drug line valuation and quantification  
  • Organised Crime Groups (OCGs)  
  • County Lines investigations  
  • EncroChat and other encrypted communication platforms  
  • Drug slang and coded language interpretation  
  • Drug ledgers, debt lists and electronic records  
  • Controlled drugs legislation and compliance  
  • Medicinal Cannabis  
  • Cannabis cultivation operations  
  • Image and Performance Enhancing Drugs (IPEDs)  
  • Drug importation and foreign organised crime groups  
  • Urban street gangs and gang-related violence  
  • Proceeds of Crime investigations  

Both Experts also deliver bespoke training and Continuing Professional Development (CPD) programmes for: 

  • Pharmaceutical companies  
  • Police Controlled Drugs Liaison Officers  
  • Universities and colleges  
  • UK Border Force  
  • Police forces across the United Kingdom 

 

Independent Expert Witness Services 

If you are currently involved in a criminal or civil case requiring specialist expertise in drug trafficking or organised crime, we will match you with the most appropriate expert witness for your matter. 

Whether instructed by solicitors, barristers, defence teams or prosecution agencies, our experts provide impartial, evidence-based reports that comply with the requirements of the courts. 

General Enquiries: info@claymoreadvisorygroup.co.uk 

Secure Email (CJSM): gary.carroll@claymoreadvisorygroup.cjsm.net 

Website: www.claymoreadvisorygroup.co.uk