A service offered in a specific geographic region focuses on the analysis of biological specimens to detect the presence of controlled substances or their metabolites. These analyses are often performed on urine, hair, blood, or saliva. As an example, a company might provide employers with a means to ensure a drug-free workplace by testing prospective or current employees.
Such services play a vital role in various sectors, including healthcare, employment, athletics, and legal proceedings. The practice helps maintain safety, ensure compliance with regulations, and provide accurate information for decision-making. Historically, these testing methodologies have evolved alongside advancements in analytical chemistry and forensic science, becoming increasingly sophisticated and accurate.
