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Zoom Testing | UK Drug Testing Weekly | 31 October 2025

Zoom Testing | UK Drug Testing Weekly | 31 October 2025

As we head into the final stretch of October, this week’s drug testing landscape reveals some troubling trends that should concern employers across the UK. From escalating substance use in secure facilities to the dangerous cocktail of synthetic cannabinoids being sold to young people, the week has served up several critical reminders of why workplace vigilance matters more than ever.

The Ketamine Crisis: Eight Times More People in Treatment

The most significant story this week comes from the UK’s Office of Health Improvement and Dispensaries, which has issued fresh guidance highlighting a staggering increase in ketamine use. There are now eight times more people entering drug treatment for ketamine use than there were a decade ago. What’s particularly concerning for workplace safety is that people aged 18-24 have the highest rates of use, meaning this is likely affecting the younger demographic of your workforce.

The harms are both immediate and long-term. Sustained ketamine use causes painful bladder and urinary tract damage, with some complications proving irreversible. Urologists across the country are increasingly seeing these presentations. For employers, this translates to potential productivity losses, increased sick leave, and the risk of impaired workers in safety-sensitive roles. The guidance materials have been released to educational settings and public health teams, signalling this is now considered a mainstream public health concern.

Dangerous Substitutes: THC Vapes and Synthetic Cannabinoids

Another critical alert this week concerns counterfeit THC vapes being illegally marketed to young people. These products, often available through social media, frequently contain synthetic cannabinoids like Spice rather than the advertised THC. The effects are far more unpredictable and potentially dangerous than cannabis alone, with documented overdoses and deaths.

For employers with younger staff members, this is a significant risk. Employees obtaining these products through social media are likely unaware of what they actually contain. Some recent vaping testing has revealed the complexity of these products, with a Virginia Commonwealth University study uncovering multiple dangerous chemicals in vapes and cannabis products used by over a million school-age children annually.

Prison Drugs: The Visible Workplace Safety Crisis

This week brought reports of escalating drug problems within the UK’s prison system, with one inspection finding a 43% increase in positive drug tests. The frequent smell of cannabis on prison wings illustrates how even in supposedly controlled environments, substance availability remains a significant challenge. Whilst this might seem removed from most workplaces, it underscores the reality that drug supply networks are sophisticated and pervasive.

More directly relevant to employers is the concurrent story about Five Wells prison in Northamptonshire, where the Independent Monitoring Board expressed continued concern about the number and range of illicit items entering the facility. For companies operating in corrections or security, this reinforces the importance of rigorous drug testing protocols.

Fake Medicines and Nitazenes: A Critical Overdose Risk

Perhaps the most alarming alert of the week concerns fake medicines containing nitazenes. Nitazenes are synthetic opioids often more potent than fentanyl, and they’re appearing in counterfeit pain-relief and other medications being sold through illicit online retailers. People purchasing these medicines are entirely unaware they’re obtaining highly dangerous substances.

This has significant implications for workplace drug testing. An employee obtaining prescription medications from illegitimate sources could test positive for opioids through no fault of their own regarding workplace safety, yet the underlying risk of overdose or impairment is very real. Employers need to be aware that not all positive opioid tests represent workplace misbehaviour – some may indicate vulnerable employees seeking medications through dangerous channels.

This week highlighted a growing concern that extends beyond illegal drugs into alcohol’s workplace impact. New research from the University of Stirling found that ambulance staff are frequently subjected to violence during alcohol-related callouts, with anxiety and frustration widespread among first responders. The study notes that alcohol-related callouts have knock-on effects for emergency response times to other patients.

One paramedic recalled questioning whether he’d “make it home tonight” – a stark reminder that alcohol-fuelled incidents don’t just affect the individual consuming alcohol but create wider public safety risks. For employers in hospitality, emergency services, or any customer-facing role, this research underscores the importance of robust alcohol policies and management.

Roadside Drug Testing: Enforcement Getting Tougher

On the enforcement front, police in Scotland have begun rolling out quick-fire roadside drug test kits in an expanded pilot programme. These rapid-response saliva drug tests represent a shift towards more immediate detection of drug-impaired driving. Companies with vehicle fleets or employees who drive as part of their role should take note – the legal environment around drug-driving enforcement is becoming increasingly sophisticated.

This week also saw a stark warning in the form of a cocaine driver jailed for six years after killing a woman in a crash. Christopher Lynn, driving under the influence on the A7 in the Scottish Borders, caused a collision that forced another vehicle into an oncoming car. It’s a sobering reminder of the consequences when substance impairment meets road safety.

Research Insights: Understanding the Gaps

Several research pieces this week highlighted knowledge gaps that matter for workplace safety. Americans’ widespread misbelief about alcohol’s link to cancer risk suggests people generally underestimate the harms of substance use. Meanwhile, research into the effectiveness of digital versus face-to-face cognitive behavioural therapy for alcohol use disorder found computerised interventions perform comparably to in-person treatment – potentially useful information for employers considering employee assistance programmes.

Perhaps most concerning for the safety-critical sectors, studies show methamphetamine use is growing among fentanyl users, with speedballing (combining opioids and stimulants) becoming routine. Nearly a third of all overdose deaths now involve methamphetamine, with most also involving opioids. This suggests increasingly unpredictable and dangerous substance combinations circulating through supply networks.

What This Means for Your Workplace

This week’s intelligence points to several key takeaways for employers. First, substance use patterns are evolving rapidly – the dramatic increase in ketamine treatment admissions and the shift towards synthetic cannabinoid vapes being sold as legitimate products means your employees may be at risk from substances that weren’t significant workplace concerns just years ago. Second, the fake medication problem shows that substance issues aren’t always about deliberate workplace misconduct – they can reflect vulnerable individuals making dangerous decisions. Third, alcohol continues to generate significant workplace and public safety risks, from ambulance staff assaults to fatal road crashes.

Your drug testing programme needs to remain current with emerging substances and evolving risks. Regular saliva or urine testing protocols provide the evidence base for informed conversations with your workforce about substance risks. Equally important is ensuring your policies balance deterrence with support – knowing that some positive results may indicate an employee in crisis rather than simple misbehaviour.

At ZoomTesting, we work with UK employers to maintain safe, fair drug testing programmes that reflect current risks whilst supporting employee welfare. If this week’s intelligence has raised questions about your current approach to substance safety in the workplace, we’re here to help you navigate the evolving landscape with expert guidance and professional testing services.


For expert advice on workplace drug testing, substance safety policies, and the implications of current drug trends for your organisation, get in touch with the ZoomTesting team today.


Photo by Anthony Cunningham for Zoom Testing


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