QML Pathology is an Australian provider of private pathology services such as instant drug testing, workplace health and safety screening, synthetic cannabinoids testing, employee health screening, veterinarian's diagnostics, etc. The story of QML Pathology began back in the 1920's when Dr Noel Gutteridge and Dr James Duhig started private pathology practice in Brisbane. Later on their sons Bruce Gutteridge and Robert and James Duhig took over the business. At that time they practiced under the company name Queensland Medical Laboratory (QML). In 1999 the company was renamed QML Pathology.