Microbial forensics has beneficial characteristics for investigating crimes. Law and order are fundamental to any nation and carry significant responsibilities. Failure in this domain may result in wrongful convictions or the guilty remaining free. Key duties include managing criminal cases and addressing threats to public order. While identifying the culprit, establishing their connection to the crime is paramount. Since legal systems require evidence for conviction, law enforcement increasingly relies on advancing scientific methods to meet this need. For example, in this case, after applying conventional techniques like DNA analysis and fingerprinting, a new technique, such as microbial forensics or fingerprints, can be applied. Trace evidence can be in the form of microbial fingerprints, and this evidence can play an important role in solving the crime. Microbial communities are dense and active in living and non-living things and in the environment. The classification and roles of these bacterial populations could be used as markers. The distinction between forensic samples is achievable because there is a diversity of microbial communities found in the human body from one location to another, and even in identical twins. The specific microbiome, which can be found on the skin or in specific body areas, may precisely identify the suspect’s connection with the crime scene for the purposes of human identification. This paper discusses the objects and latest advancements in the science of microbial forensics and their significance within the law enforcement process.

Background: Managing hazardous waste in India is a complex environmental and public health issue that raises legal questions regarding the source of pollution, routes of contamination, and legal liability. Forensic environmental auditing is an approach that combines chemistry, environmental science, and legal principles to address such issues. Objective: This review discusses the application of environmental forensics in the management of hazardous waste, with emphasis on audit techniques, source identification through chemical and isotope analysis, digital waste monitoring, scientific evidence in the Indian legal system for judicial purposes, and is updated with recent legislative modifications, including the Environment Audit Rules, 2025. Methods: An integrative narrative review of scientific literature in peer-reviewed scientific journals (2000–2026), environmental legislation in India, regulatory inventories by the Central Pollution Control Board (CPCB), and landmark decisions made by the Supreme Court of India and the National Green Tribunal (NGT). Results: The review highlights the following four thematic threads at the technical-legal interface: (i) deficiencies in institutional and methodological standardization of environmental forensics in regulatory enforcement practice; (ii) technical advantages and limitations of GC × GC–TOFMS, MC-ICP-MS, and machine learning models as source discrimination tools; (iii) legal obstacles in scientific data transformation into judicial proof under the framework of the absolute liability principle and the Bharatiya Sakshya Adhiniyam, 2023; (iv) disruptive potential and physical-digital boundaries (‘oracle problem’) of IoT, AI, and blockchain technologies in waste traceability. Conclusions: Effective hazardous waste regulation in India requires implementing the newly adopted Environment Audit Rules, 2025, accrediting forensic laboratories in accordance with ISO/IEC 17025, and introducing unified evidentiary standards for NGT proceedings to shift from retroactive dispute settlement to proactive, evidence-based enforcement of liabilities.