Lead by Gary who is a highly experienced and versatile Drug Expert Witness.

They provide independent expert opinion in cases ranging from street-level drug supply to complex international conspiracies involving the distribution of Class A drugs valued at many millions of pounds.

As part of Claymore’s specialist team of three dedicated Drug Expert Witnesses, clients benefit from exceptional capacity, rapid turnaround times, and expert availability for urgent instructions.

Collectively, the Claymore team has completed over 2,500 expert reports and brings more than 35 years of combined policing and expert witness experience, ensuring consistent, high-quality expertise across every case.

Their expertise has been relied upon in investigations involving drug trafficking, firearms supply, County Lines operations, Organised Crime Groups (OCGs), and encrypted communication platforms, including EncroChat.

All experts experience has been derived from decades of policing experience in a variety of role which lead to 1^st hand insights and knowledge in Drug Supply.

Gary’s reputation within the criminal justice system has led to appearances in national newspapers, television interviews, and international media discussing drug-related criminality and emerging trends.

While regularly instructed in matters involving Cannabis, Crack Cocaine, Cocaine, and Heroin.

We benefit from extensive experience in cases involving Medicinal Cannabis, Image and Performance Enhancing Drugs (IPEDs), Novel Psychoactive Substances (NPS), prescription medicines, cutting agents, adulterants, and other controlled substances.

This expertise extends beyond drug identification to the interpretation of evidence commonly encountered in serious organised crime investigations.

This includes analysing and decoding drug-related slang, coded language, encrypted communications, handwritten notes, drug line data, and other digital or documentary evidence.

Typical Areas of Instruction

Claymore regularly provides expert reports covering, but not limited to:

• Identification and valuation of controlled drugs.
• Medicinal Cannabis related incidents
• Identification and interpretation of drug-related paraphernalia.
• Examination and decoding of notebooks, ledgers, and associated documents.
• Drug slang and coded language interpretation.
• Drug line analysis and valuation.
• Drug supply, trafficking, and conspiracy investigations.
• County Lines operations and Organised Crime Group structures.
• EncroChat and other encrypted communication platforms.
• Drug trafficking methodologies and the roles performed by individuals within supply chains.
• Interpretation of telecommunications, digital evidence, and intelligence relevant to drug investigations.

Unlike many experts, Gary routinely interviews and debriefs drug users, former suppliers, and at-risk young people, ensuring all opinions remain informed by current criminal practices, terminology, pricing, and evolving market trends.

This ongoing frontline engagement enables him to provide evidence that is both current and firmly grounded in real-world experience.