Forensic Investigation of Explosion in a Plastic Recycling Plant

Introduction: Plastics have woven themselves intricately into the fabric of human existence, manifesting in myriad forms across daily life. From the convenience of single-use items like bags and bottles to the structural integrity of complex machinery components, plastics have no doubt revolutionized industries and consumer habits, rendering them indispensable in multiple sectors, especially routine household items, kid’s toys, and healthcare, where they enable sterile packaging and life-saving medical devices. Their omnipresence has also generated environmental challenges; hence, reuse-recycling is encouraged. Plastic recycling plants have grown like mushrooms in the industrial belts of Delhi, the capital city of India, too. An accidental explosion in one such plant was life-threatening to three people and injured six. Cases of such demystifying explosions are rare, and therefore, forensic investigation into the incident is of utmost importance to understand the origin and cause of the explosion.Case History: This case report details an atypical incident involving a sudden blast within a manufacturing facility in a plastic recycling unit. Forensic scene of crime examination, conducted meticulously and comprehensively, revealed no indications of external ignition sources or any incendiary materials. Chemical analysis of exhibits performed at a forensic laboratory confirmed the presence of butane, consistent with findings from cigarette lighter’s fuel, using HS-GC-MS instrumentation.Conclusion: The clear resolution of this enigmatic explosion was achieved by forensic investigators through a thorough scene of crime investigation, careful co-relation of all pertinent evidence, and applying the basic scientific principles of physics and chemistry. Instances of malpractice, lack of awareness, and negligence in recycling procedures have posed significant risks to individuals present in the vicinity of factory premises.