Trace Detection

Trace detection is a method used to find small amounts of substances—like drugs, explosives, or toxins—by analyzing tiny particles or residues left behind. It often involves sensitive instruments, such as specialized sensors or chemical analysis tools, to detect these minute traces even if they are invisible to the naked eye. This technique is commonly used in forensic investigations, security screening, and environmental testing to identify materials without needing large samples. By focusing on trace amounts, authorities can uncover evidence that might otherwise go unnoticed, making it a powerful tool for ensuring safety and justice.