Key Personnel
Together, our skilled professional team provide fast, effective, and dependable drug screening solutions, to improve safety, worldwide. Our commitment to innovation drives us to persistently refine and improve our products and services, delivering superior precision and dependability.
Gary Johnson
Gary Johnson founded Alcolizer Technology in 1988, developing Australia’s first standards-compliant wall-mounted breathalyser in response to emerging drink-driving legislation.
With a reputation for getting the job done - no matter the hurdles - Gary is known for his commitment to innovation, diversification, and service excellence. He began his career by establishing GJ Johnson & Co, an electrical contracting business in Fitzroy Crossing, laying the foundation for a group of companies that continue to grow under his leadership.
As the driving force behind Alcolizer Technology’s strategic vision, Gary works closely with the Executive Team to ensure the company delivers high-quality products and services that meet Australian & New Zealand Standards and support safer, workplaces.
Nigel Burr
Nigel leads the company's mission to deliver innovative drug and alcohol testing solutions that enhance safety and efficiencies. As CEO (previously serving as Sales and International Manager), Nigel has played a crucial role in transforming Alcolizer Technology into today's market leader.
With extensive leadership and sales experience, as well as manufacturing and supply chain, Nigel focuses on customer engagement, innovation and building high-performing teams to maintain position as a trusted industry leader.
Nige's educational background includes a Bachelor of Engineering (B.E) in Chemical and Materials, along with postgraduate qualifications in Marketing and Packaging Technology.
Shannon Bell
Shannon Bell is a Chartered Accountant with extensive financial leadership experience and currently oversees the GJ Johnson Group of Companies.
As Company Secretary and a board member of Alcolizer Technology, Shannon brings deep expertise in financial accounting, reporting, audit, budgeting, tax, and economic evaluation. His technical capabilities and strategic insight support Alcolizer Technology's long-term growth and operational excellence.
Shannon is passionate about developing and empowering others, having successfully led diverse teams across cultural and professional backgrounds. His collaborative leadership style and commitment to continuous improvement make him a valuable contributor to Alcolizer Technology’s governance and strategic direction.
Rebecca Bell
With extensive experience in marketing, business development, and strategic improvements, Rebecca leads Alcolizer Technology’s training and marketing departments and plays a key role in driving organisational efficiency and customer engagement. She ensures that brand messaging aligns with business objectives and produces valuable content to keep customers informed about regulatory requirements and industry trends.
As a proactive contributor to product development and company strategy, Rebecca helps enhance service offerings and identify new opportunities, ensuring Alcolizer Technology remains a trusted partner in delivering solutions for a safe, productive, and compliant workplace.
Richard Abram
Richard is a seasoned Design Engineer with three decades of expertise across diverse mechanical engineering fields, focusing on product development and innovation.
His extensive knowledge, excellent communication and negotiation abilities working with local and international suppliers, delivers superior quality outcomes within budget constraints whilst meeting strict timelines.
Skilled at managing concurrent responsibilities efficiently, Richard maintains consistent delivery of premium products with reliable supply and assistance.
Richard Moss
Richard is known for innovative solutions and measurable results. A Chartered Engineer with over 30 years industry experience, Richard combines technical expertise with strategic insight. As a member of the Institution of Engineering & Technology (IET) and International Compliance Association (MICA), he brings deep technical knowledge to drive business excellence.
Richard is a Certified Operational Risk Manager and has specialised in Drug and Alcohol testing for over a decade. Richard excels in engineering, product management, strategy, compliance, and aligning technology with business goals.
Katya Wright
Katya provides comprehensive workplace health and safety solutions to benefit a wide range of industries. With an in-depth understanding of the importance of drug deterrence strategies in the workplace and how strategic data collection and analysis plays an important role in WHSE management, benefit from Katya’s extensive 14+ years’ industry experience.
Offering effective business to business development and account customer management, Katya ensures clients develop and implement effective alcohol and drug testing programs. As a trusted advisor, Katya has built long term relationships providing focused business solutions and unrivalled knowledge backed by high-quality, reliable, and innovative products.
Dr Murdo Black
Chief scientist, leading research into innovative technologies and advanced testing solutions for Alcolizer Technology. With an impressive three-decade career in product development, he has made significant contributions to medical diagnostics at leading healthcare companies including Abbott, Roche, Siemens, and Beckman.
His academic credentials include a PhD in Toxicology, MSc in Instrumental Analysis, an MBA from Warwick University and over 20 patents in medical diagnostics and membrane technology. Murdo has successfully lead large R&D departments comprising 30-40 postdoctoral researchers and graduate scientists.
Dr. Meenakshi Verma
A highly skilled scientist with expertise in nanotechnology and diagnostics, Dr Verma specialises in developing lateral flow-based tests.
Her core strengths include nanoparticle development, molecular modeling, and sophisticated data analysis. Dr. Verma has led the optimisation of formulations, component selection, and data-driven threshold algorithms; ensuring compliance with Australian standards.
Combining expertise in molecular binding, biological coupling, and clinical testing, Dr. Verma connects scientific research with practical applications, fostering teamwork and innovation to support Alcolizer Technology's commitment to superior diagnostic tools.
Steve Korkoneas
With over 30 years of experience, Steve is Alcolizer Technology’s in-house Toxicologist and a leading authority in onsite drug and alcohol testing. As the National OST Technical Specialist, he brings deep technical and analytical expertise to the forefront of workplace testing solutions.
Steve holds a Bachelor of Science in Chemistry/Pharmacology from Monash University, a Graduate Diploma in Analytical Chemistry from RMIT, and a Grade IV Certificate in Forensic Science from Swinburne University. He is also a Certified Workplace Drug & Alcohol Collector and holds a Certificate IV in Training & Assessment.
Renowned for his expert advice on drug testing procedures, result interpretation, and policy development, Steve has provided authoritative testimony in various legal settings, including the Industrial Relations Commission, Fair Work Australia, the County Court, and the Family Court of Australia.
Lachlan Dent
Lachlan oversees the comprehensive management of the National Operations of Onsite Testing, ensuring seamless co-ordination of testing schedules while maintaining direct communication with technicians to uphold exceptional quality standards.
His industry experience combines testing expertise with operational management, overseeing technician supervision and service delivery.
Lachlan holds a Bachelor of Science in Sports Science & Exercise Health (UWA) and has worked as an exercise scientist conducting workplace fitness evaluations and rehabilitation programs. With his BSc degree and HLTPAT005 certification in drug specimen collection, Lachlan applies his educational background and hands-on expertise to provide comprehensive drug and alcohol testing services.
Natasha McCulloch
Natasha demonstrates unwavering dedication to ensuring her clients receive exceptional value and service. Co-ordinating regular check ins to enhance satisfaction and address evolving needs, benefit from Natasha's industry insights.
Drawing from her extensive sales experience, she excels at delivering customised Drug and Alcohol Testing & Data Management Solutions for each individual customer.
Understanding that each organisation has distinct needs, Natasha can provide valuable insights for implementing testing across industrial WHSE management divisions.
Reach out to Natasha for premium support, guidance, and customised testing solutions.
Sarah Butler
Sarah is a passionate sales professional with over 15 years of expertise in the safety industry.
With her extensive background, Sarah is committed to understanding your business's safety needs and providing guidance and support to enhance or establish your fit-for-work policy.
An energetic and self-driven safety professional, Sarah has a proven track record in sales, client retention and relationship building. She is dedicated to helping customers with their Drug and Alcohol Testing & Data Management Solutions to ensure a safer workplace.
Reach out to Sarah for support, guidance, and customised testing solutions.
Siobhan Corr
Siobhan Corr is a trusted specialist in Workplace Drug and Alcohol Programs, with over 10 years of experience supporting clients across transport, aviation, logistics, construction, and government sectors.
She combines strategic account management with deep industry knowledge to deliver tailored, compliant solutions that align with each organisation’s safety and operational goals.
Siobhan is known for her consultative approach, translating complex compliance requirements into practical outcomes. Her strength lies in building long-term client relationships, driving continuous improvement, and supporting safer, more efficient workplaces through education, testing, and policy expertise.
Have a question or need support? Reach out to Siobhan - she’s always happy to help.
Carolina Concha
As a highly-driven professional, Carolina is committed to delivering exceptional results in all aspects of her career. With a previous sales background in pharmacy and safety, she brings a unique blend of expertise and skills to the table. Throughout her career, Carolina has consistently demonstrated her ability to be efficient and effective in everything she does.
With a proven track record of success in account management, Carolina gains deep insights into clients requirments to consistently deliver tailored solutions that precisely address their unique needs. Carolina is known for her strong work ethic, attention to detail, and ability to meet tight deadlines without compromising quality.
Reach out to Carolina for support, guidance, and customised testing solutions.
Cara Sacco
With extensive experience in education, training, and health and wellbeing, Cara leads Alcolizer Technology’s customer training portfolio. She draws on two decades of expertise in compliance, curriculum design, and operational leadership to deliver learning solutions that are practical, engaging, and tailored to industry needs.
Throughout her career, Cara has developed and delivered both accredited and non-accredited programs, overseen RTO compliance, and built trainer capability through mentoring and professional development. Her background in managing national, health and safety programs gives her a unique perspective that ensures training not only meets regulatory standards but also supports safe and sustainable workplaces.
Known for her collaborative and approachable leadership style, Cara is passionate about empowering people through learning, building capability at all levels, and fostering strong partnerships with clients and colleagues.
