Eight members of a major organised crime group (OCG) responsible for distributing over 70kg of cocaine across the southwest and beyond have been jailed for a combined 82 years, following a large-scale investigation by Wiltshire Police’s Serious Organised Crime Unit (SOCU).

The gang, led by brothers Warren and Kelroy Allison, used encrypted communications networks to orchestrate the movement, storage, and supply of Class A drugs worth up to £7 million.

Ringleader Sentenced to 23 Years

Following a 12-week trial at Winchester Crown Court, the OCG’s ringleader Warren Allison, 36, from Swindon, was handed a 23-year prison sentence. His brother Kelroy Allison, 41, from Hilperton, was sentenced to 16 and a half years.

During the trial, prosecutors detailed how the gang operated for almost five years, purchasing cocaine in bulk before breaking it down into smaller quantities for street-level distribution.

The Operation: Drugs, Encrypted Phones, and Cash Movements

• Driver Richard Cowell, 57, was recruited to courier drugs and cash across the region using a specially modified vehicle with secret compartments.
• The OCG’s finance manager, Porcia Densley, 38, handled the flow of cash, ensuring the smooth running of their multi-million-pound enterprise.
• Albanian nationals Ledian Hoxha and Pjeter Pisha were linked to a secondary drug supply operation uncovered during the investigation.
• The gang relied on encrypted messaging services, including EncroChat and SKY ECC, to avoid detection.

Key Seizures and Arrests

On November 3, 2020, officers raided a property in Bristol, seizing 4kg of cocaine valued between £320,000 and £400,000. Police forced entry into the address and arrested Anthony Burke, 34, who had just received the drugs.

A separate raid on a Dagenham address led to the arrest of Warren Allison, where officers discovered two mobile phones linked to drug supply operations.

Further search warrants and covert surveillance revealed stash houses filled with cash, drugs, and drug paraphernalia, leading to the complete dismantling of the gang.

Sentences Handed Down

Following their convictions at Winchester Crown Court, the eight defendants received the following sentences:

• Warren Allison, 36 – 23 years (ringleader, conspiracy to supply cocaine)
• Kelroy Allison, 41 – 16.5 years (co-organiser, conspiracy to supply cocaine)
• Richard Cowell, 57 – 9 years (drug courier and transporter)
• Porcia Densley, 38 – 8 years (finance manager)
• Anthony Burke, 34 – 8 years (drug receiver and distributor)
• Ledian Hoxha, 38 – 7 years 4 months (drug supplier)
• Pjeter Pisha, 37 – 6 years 8 months (drug supplier)
• Enid Aliko, 28 – 4 years (facilitator for Albanian crime group)

Police Statement: ‘They Are Not Untouchable’

Detective Constable Matthew Harvey, who led the investigation, praised the covert operation, saying:

“This investigation systematically dismantled a significant drug network operating not just in Wiltshire, but across the southwest region and beyond.

“The Allison brothers were making millions from cocaine while fueling the associated violence, exploitation, and crime that comes with drug supply. This gang thought they were untouchable, but today’s sentences prove otherwise.”

Community Intelligence and Further Disruptions

The SOCU’s investigation also led to further arrests and disruptions of associated criminals linked to the Allison brothers.

DC Harvey urged the public to report suspicious activity, stating:

“We know Warren Allison used his criminal wealth to buy luxury cars, including a Lamborghini Huracan, Mercedes C63 AMG, and Audi RS6. These flashy displays of wealth do not go unnoticed—by the police or the public.”

“If you see something suspicious—such as unexplained wealth or activity—report it. Every piece of intelligence helps.”

What’s Next?

• Two additional individuals linked to the gang will be sentenced at a later date.
• Authorities will continue asset seizure proceedings to reclaim criminal profits.
• SOCU teams will continue monitoring the region for organised crime activity.

This conviction marks one of the largest cocaine supply networks dismantled in Wiltshire and underscores the determination of law enforcement to bring drug traffickers to justice.