Drug lab boss jailed after large-scale synthetic drugs factory uncovered in Hull
A man who operated a large-scale synthetic drugs laboratory from a house in Hull has been jailed following a major organised crime investigation.
On November 13, 2025, officers attended an address on Cavill Place in Hull, after concerns were raised around the repeated delivery of chemicals to the property.
When officers arrived, a man later identified as Radoslaw Golec, fled the scene before making off from the area.
Inside the property police discovered a large-scale synthetic drugs laboratory, complete with industrial equipment, chemicals and tools capable of producing significant quantities of class A and B drugs.
Due to the hazardous nature of the scene, a cordon remained in place for five days while specialist officers and partner agencies worked to assess, test and safely remove the chemicals before dismantling the laboratory.
Detectives also recovered substantial quantities of drugs from the property, including amphetamine, methamphetamine, MDMA and mephedrone, tested by specialist Drugs Expert Witnesses, as well as approximately £14,800 in cash believed to be linked to criminal activity.
A pill press commonly used in the manufacture of MDMA tablets was also seized, with evidence showing the address had been actively used to produce synthetic drugs on a commercial scale, police reported.
Detectives believe the Hull laboratory formed part of a much larger drugs operation.
Messages recovered from mobile phones showed specialist equipment had been bought from China using cryptocurrency and shipped to addresses across the UK.
Investigators also uncovered evidence suggesting courier services were being used to move drugs around the country.
CCTV footage, parcel tracking records and phone messages linked deliveries to a wider supply network, including references to around 70kg of mephedrone worth an estimated £280,000.
Fingerprint evidence placed Golec inside the laboratory, while CCTV showed him attending the property almost daily.
Golec, 37 from Sheffield, continued to evade arrest and remained wanted until he was traced to Sheffield where he was arrested by the specialist Kinetic Roads Crime and Kinetic Intervention Teams at a supermarket carpark on April 2, 2026.
A set of keys found whilst officers searched Golec led to a second property in Sheffield, where smaller quantities of suspected drugs, a label printing machine and a vacuum bag sealer were recovered.
Golec was arrested and subsequently charged.
As part of the wider investigation, nine other individuals were arrested and remain on conditional bail at this time pending further enquiries.
Golec appeared at Hull Crown Court on Friday (Jun 19) for sentencing after he pleaded guilty to conspiracy to produce class A MDMA and class B amphetamine, being concerned in the supply of class A MDMA and class B amphetamine, and possession of criminal property.
The 37-year-old was sentenced to 10 and half years in prison
Senior Investigating Officer, Detective Chief Inspector Chris Swaby said: “This was a highly complex investigation which uncovered a dangerous and improvised drugs lab operating on a significant scale, with a complete disregard for the risks posed to the public and neighbouring residents.
“Golec was motivated by greed and financial gain, producing and supplying harmful drugs with no concern for the devastating impact these substances have on individuals, families and communities.
“A huge amount of work was undertaken by dedicated officers from our Major Crime Team, supported by partner agencies including specialist officers and analysts, and involved hundreds of hours of investigative work alongside the examination of hundreds of exhibits to establish the full scale of the operation.
“This included specialist forensic examinations, the safe dismantling of the laboratory and removal of hazardous chemicals, as well as extensive evidential enquiries which ultimately enabled detectives to build a substantial case against Golec.
“While Golec may have believed he had all the ingredients for a successful enterprise, it ultimately collapsed when our officers uncovered the full scale of the criminality operating behind the scenes.
“Anyone involved in serious and organised crime can expect to be met with the full force of the law, as we continue to relentlessly pursue offenders, disrupt criminal operations, and bring those responsible before the courts.
“If you have any concerns around criminality in your area, please report this to us via our non-emergency number 101, or by speaking to your local officer and calling into your nearest police station.”