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White Black Legal – International Law Journal · ISSN 2581-8503
Forensic Microbiology in India: Emerging applications, legal challenges & prospects for criminal justice.
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Abstract
FORENSIC MICROBIOLOGY IN INDIA: EMERGING APPLICATIONS, LEGAL CHALLENGES & PROSPECTS
FOR CRIMINAL JUSTICE
AUTHORED
BY - SHAILESH KARKHUR
School of Law, ITM University, Gwalior, Madhya Pradesh, India
|
ABSTRACT
Forensic
science represents one of the most vital scientific pillars in the modern
criminal justice system. Originating from the Latin forensis ('before the
forum'), it encompasses the application of multidisciplinary scientific
principles to legal adjudication. Forensic microbiology—an expanding
subfield incorporating molecular biology, microbial genetics, and genomic
technologies—examines micro-organisms, viral signatures, and biological
toxins for evidentiary purposes. This paper examines the evolving
landscape of forensic microbiology within the Indian legal and criminal
justice framework. It explores technological developments such as
Next-Generation Sequencing (NGS) and Polymerase Chain Reaction (PCR),
evaluates infrastructural allocations from Central schemes, and provides
a critical appraisal of structural deficiencies highlighted in empirical
studies like Project 39A. Finally, the paper discusses legal challenges
regarding evidence admissibility, chain of custody, and systemic reform
necessary for national security and judicial efficacy.
|
1.
INTRODUCTION
Forensic science is one of the most significant scientific tools in the modern criminal justice system. In criminal investigations and the administration of justice, it refers to the systematic application of scientific ideas, methods,
and laboratory instruments.1 The word "forensic" derives from the Latin forensis, meaning "before the forum", referencing the formal presentation of scientific findings
within judicial proceedings. As a highly specialized multidisciplinary field, forensic science has evolved from basic observational methodologies into complex domains comprising toxicology, anthropology, molecular genetics, and digital forensics.
One of the most
rapidly expanding subfields
is forensic microbiology—the
application of microbiological
knowledge, molecular biology, microbial
genetics, and genomic technologies to criminal and civil investigations.2 Microbes, bacterial communities, fungi, viruses,
microbial toxins, and distinct
biological signatures are analyzed primarily for evidentiary purposes. This specialized domain enables investigators to identify specific microbial
strains, trace biological
agents to their source, link suspects to crime scenes,
estimate postmortem intervals (PMI), and investigate cases of biological crimes or bioterrorism.3
The global significance of forensic microbiology surged following the 2001 anthrax attacks in the United States, wherein microbial
forensic analysis was pivotal in tracing the
origin of Bacillus anthracis spores distributed through the postal system. This event underscored the critical role of microbial forensics in public safety, criminal adjudication, and
national security. Subsequently,
several sovereign jurisdictions expanded
their forensic microbiology infrastructure, integrating state-of-the-art technologies including High-Throughput Sequencing,
Polymerase Chain Reaction (PCR), metagenomics, and advanced bioinformatics.
In India, forensic microbiology remains a developing branch. Historically, Indian forensic laboratories focused predominantly on traditional
disciplines such as fingerprint analysis,
toxicology, ballistics, questioned documents, and serology. However, the diversification of criminal activities—encompassing biological threats, environmental crimes, food adulteration, wildlife trafficking, and complex sexual
assault investigations—has necessitated the integration of microbiological and DNA-based forensic methodologies.4
2.
HISTORICAL DEVELOPMENT OF FORENSIC SCIENCE IN INDIA
India has a long historical precedent of integrating scientific and medical observations into criminal investigation. Ancient legal and medical texts indicate early reliance on observational science.
Kautilya's Arthashastra contains specific
references to investigating unnatural deaths through physical inspection and poison detection.
Contemporary forensic systems were formally structured during the British colonial era. A institutional milestone occurred in 1897 with the establishment of the world's first Fingerprint Bureau in Kolkata, positioning India as an early pioneer in dactyloscopic criminal identification. Throughout the 20th century, Central and State Forensic Science
Laboratories (CFSLs and SFSLs) were established to provide formal scientific assistance to law enforcement and judicial authorities.
|
Year Institutional & Technological Milestone
|
Table 1: Historical Milestones in Indian Forensic Science Development5
1897 First Fingerprint Bureau in
the world established at Kolkata.
1952 First Central Forensic Science Laboratory (CFSL) established at Kolkata.
1986 Initiation of specialized DNA fingerprinting research in India.
2002 Policy shift towards bio-security and microbial forensics following global anthrax incidents.
2009 National expansion and modernization of state DNA profiling laboratories.
2020 Enactment of NFSU Act 2020 and implementation of national modernization initiatives.
2024 Approval of the National Forensic Infrastructure Enhancement Scheme (NFIES).
3.
GROWTH DRIVERS OF FORENSIC MICROBIOLOGY
The rapid advancement of forensic microbiology in India is driven
by key technological,
judicial, and legislative factors:
3.1
Advancement in DNA & Genomic Technologies: The introduction of DNA profiling revolutionized scientific investigations. Technologies such as Polymerase Chain Reaction (PCR), Short Tandem
Repeat (STR) analysis,
Next-Generation
Sequencing (NGS), metagenomic
sequencing, and
16S rRNA analysis allow experts to identify precise
microbial signatures, determine postmortem microbial
succession (thanatomicrobiome), and establish biological links.6
3.2
Judicial Acceptance of Scientific Evidence: Indian courts increasingly rely on scientific, microbiological, and DNA evidence under statutory provisions of the Indian Evidence Act 1872 (now updated under Bharatiya
Sakshya Adhiniyam 2023). Judicial willingness to admit expert testimony under section 45 has
catalyzed forensic modernization.7
3.3
Public Sector Capital Investment:
Strategic central initiatives,
including the National
Forensic Infrastructure Enhancement Scheme (NFIES),
have
injected substantial
financial resources into expanding
regional
laboratory capabilities and mobile
forensic units.
1 A Kumar and A Verma,
'The Development, Status
and Future of Forensics in India' (2021) 3
Forensic Science International: Reports 100215.
2 R Nodari and others, 'Forensic Microbiology: When, Where and How' (2024) 12(5) Microorganisms 988.
3 R Sharma and D Singh, 'Microbiome Analysis: An Emerging Forensic Investigative Tool' (2022) 340 Forensic Science International
111462.
4 M Malathi, 'Forensic Microbiology in India: A Missing Piece in Puzzle
of Criminal Investigation System' (2023) 44 Indian Journal
of Medical Microbiology 100367.
5 Compiled from Ministry of Home Affairs (MHA) Reports and historical milestones of DFSS, Government of India.
4.
BUDGETARY ALLOCATIONS & INSTITUTIONAL FUNDING (2016–2026)
Systemic
expansion of forensic microbiology infrastructure
relies on central and state
funding mechanisms administered primarily through the Ministry of Home
Affairs (MHA) and the
Directorate of Forensic Science
Services (DFSS).
4.1
Modernization of Police
Forces (MPF) Umbrella
Scheme: Approved for 2021–2026
with a total financial outlay of ₹26,275 crore, this scheme allocates dedicated capital for constructing operationally independent, technologically advanced forensic facilities across States and Union Territories.
4.2
Scheme of Modernization of Forensic Capacities (SMFC): Allocating ₹2,080.5 crore for 2021–
2026, SMFC specifically funds:
·
Upgradation
of State Forensic Science
Laboratories (SFSLs) with modern molecular equipment (₹186.12 Crore approved).
·
Deployment of District Mobile Forensic Vans (₹159.12 Crore authorized).
·
Establishment of specialized DNA profiling units and bio-safety containment facilities.
4.3
National Forensic Infrastructure Enhancement Scheme (NFIES): Formally sanctioned in June 2024 with an outlay of ₹2,254.43 crore,8 NFIES focuses on establishing 9 new campuses for the National Forensic Sciences University
(NFSU), 7 new CFSL laboratories,
and reducing case backlogs through infrastructure expansion.
|
Scheme / Sub-Department Allocation Financial Outlay (INR)
|
Table 2: MHA Union Budget Allocations for Forensic Infrastructure (2026–27)9
Scheme for Modernization of Forensic Capacities ₹500.00 Crore
Inter-Operable Criminal Justice System (ICJS) Integration ₹550.00 Crore
National
Forensic Sciences University (NFSU) Operational Grant ₹145.00 Crore
Criminology
& Forensic Science Administration ₹135.89 Crore
National
Forensic Infrastructure Enhancement Scheme (NFIES) ₹130.00 Crore
Upgradation
of Central Forensic Science
Laboratories (CFSLs) ₹14.00 Crore
4.4
Hierarchical Flow ofCentral Funds
Capital disbursements follow a four-tier administrative flow:
1. Parliamentary Approval: Allocation via the Union Budget under MHA schemes.
2. Central Agency
Disbursement: Distribution to DFSS, CFSLs, and NFSU.
3. State Home Department Allocation: Transfer to State Treasuries and SFSL Directorates.
4. District & Lab Utilization: Expenditure on PCR machinery, NGS platforms, reagents, and specialized personnel recruitment.
8 Press Information Bureau (PIB),
'Government's Big Push
for Forensic Infrastructure Enhancement Scheme (NFIES)' (MHA Document, 2024).
9 Economic Times Policy
Bureau, 'Budget 2026-27:
Over Rs 1,471 Crore Allocated for Forensic-Related Schemes
Under MHA' (Economic Times, 2026).
5.
STATE-WISE ANALYSIS OF FORENSIC MICROBIOLOGY INFRASTRUCTURE
The development of forensic microbiology across Indian states exhibits significant regional disparity. While select states
have integrated advanced
molecular biology laboratories, economically weaker and geographically remote regions face
severe structural deficits.
Table 3: Comparative Infrastructure & Operational Vulnerabilities Across Key States
|
State / Region
|
Infrastructure & Capabilities
|
Key Structural Vulnerabilities
|
|
Gujarat
|
Home to NFSU Gandhinagar; advanced DNA, NGS, and cyber-forensic units.
|
High operational demand; continuous need
for specialized personnel.
|
|
Uttar Pradesh
|
1 State
FSL, 12 Regional FSLs, UPSIFS institute, 75 mobile forensic vans.
|
Severe case pendency (>16,000 cases);
estimated ~75% staff vacancy rate in FSLs.
|
|
Haryana
|
1 SFSL, 4 RFSLs; spent ₹15.83
Cr on equipment upgrades; strong DNA focus.
|
High staff vacancy (~73%); DNA division periodically forced to restrict case
intake.
|
|
Madhya Pradesh
|
Central FSL at Bhopal, State FSL at Sagar, 4 Regional FSLs.
|
Advanced microbial testing concentrated in major cities; regional imbalance.
|
|
Northeast Region
|
Isolated State
FSLs; limited regional laboratory coverage
across 8 states.
|
Geographic isolation; total reliance on CFSL
Kolkata/Delhi for complex microbiology.
|
6.
CRITICAL EVALUATION: PROJECT 39A FINDINGS
Empirical
research conducted by Project 39A (National Law University, Delhi) has highlighted
structural flaws within the Indian forensic ecosystem that directly impact forensic microbiology admissibility:10
·
Severe Human Resource Deficits: High vacancy rates across scientific cadra lead to prolonged testing delays and excessive workloads
for existing analysts.
·
Chain of Custody Breaches: Inadequate cold-chain storage and improper collection of fragile
microbiological specimens by frontline police leads to sample degradation and contamination.
·
Lack of Statutory Accreditation: A significant proportion of state laboratories lack mandatory NABL (National Accreditation
Board for Testing and Calibration Laboratories) ISO/IEC 17025 accreditation.
·
Absence of Standard Operating Procedures (SOPs):
Non-uniform methodologies during sample extraction and sequencing weaken expert evidence under cross-examination.
10 Project 39A, Forensic Science India Report: A Study ofForensic
Science Laboratories (National Law University Delhi 2021).
7.
LEGAL CHALLENGES & JUDICIAL ADMISSIBILITY
The integration of forensic microbiology into Indian criminal jurisprudence faces rigorous legal scrutinies under statutory and constitutional standards:
7.1
Standard of Proof & Expert Evidence:
Under Section 45 of the Indian Evidence
Act (and corresponding provisions in the
Bharatiya Sakshya Adhiniyam 2023), expert opinions on
science are advisory. Courts require
proof that microbiological testing techniques are validated, error
rates are documented, and procedures are scientifically accepted.
7.2
Contamination & Environmental Interference: Unlike human DNA, microbial DNA is ubiquitous. Distinguishing ambient environmental micro-flora from crime-scene specific biological signatures presents a major challenge
during judicial evaluation.
8.
CONCLUSION & POLICY RECOMMENDATIONS
Forensic microbiology holds profound potential for enhancing criminal
justice delivery, biosecurity, and complex biological crime investigations in India. However,
bridging the gap between scientific potential
and
judicial admissibility requires immediate legislative and institutional interventions:
1. Mandatory NABL Accreditation: Enforce statutory requirements ensuring all State and Central laboratories operating microbiology units adhere to ISO/IEC 17025 standards.
2. Standardized Microbial Protocols: Establish uniform national Standard Operating Procedures (SOPs) for field sampling, cold-chain logistics, and metagenomic sequencing.
3. Capacity Building & Recruitment: Address the acute human resource vacancy rates highlighted in state analyses through specialized recruitment drives in collaboration with NFSU.
4. Police Training Modernization:
Mandate standardized biological evidence handling modules for frontline law enforcement officers to
preserve evidentiary integrity.
9.
TABLE OF AUTHORITIES & REFERENCES (OSCOLA FORMAT)
Journal Articles & Reports
·
Devi
M and others, 'Thanatomicrobiome and Postmortem Microbial Succession: Ecological Dynamics, Molecular Advances, and Emerging Forensic Applications' (2026) Annals ofMicrobiology <https://doi.org/10.1186/s13213-026-01856-8>.
·
Directorate of Forensic Science
Services, Annual Report on
Forensic Infrastructure Development
in India (Ministry of Home
Affairs 2024).
·
Gokhale C, Kaur R and Mali B, 'Microbial Forensic – An Investigative Approach' (2022) 5(3) International Journal ofResearch in Engineering, Science and Management 95.
·
Haricharan A and others, 'Forensic Microbiology: A Comprehensive Review' (2025) 3(1) International
Journal ofMedical Justice 56
·
Kumar A and Verma A, 'The Development, Status and Future of Forensics in India' (2021) 3 Forensic Science International: Reports 100215 <https://doi.org/10.1016/j.fsir.2021.100215>.
·
Kumar P, Sharma S and Gupta R, 'Journey
of Unidentified Bodies
Towards DNA Identification: A Social, Medico-Legal and Forensic Perspective from New Delhi in India' (2022) 341 Forensic
Science International 111470.
·
Malathi M, 'Forensic Microbiology in India: A Missing Piece in Puzzle of Criminal Investigation System' (2023) 44 Indian Journal of Medical Microbiology 100367.
·
Nodari R and others, 'Forensic Microbiology: When, Where and How' (2024) 12(5) Microorganisms 988
·
Project 39A, Forensic Science India Report: A Study ofForensic Science Laboratories (National Law University Delhi 2021).
·
Saha R and others, 'The Underutilization of
Forensic Microbiology: A Narrative Review' (2023) Annals ofNational Academy of
Medical Sciences (India).
·
Sharma R and Singh D, 'Microbiome Analysis: An Emerging Forensic
Investigative Tool' (2022) 340 Forensic Science
International
How to Cite This Article
SHAILESH KARKHUR, Forensic Microbiology in India: Emerging applications, legal challenges & prospects for criminal justice.., White Black Legal – International Law Journal, ISSN: 2581-8503, Vol. 4, Issue 1, September 2026, pp. 841-851. Available at: https://www.whiteblacklegal.co.in/public/details/forensic-microbiology-in-india-emerging-applications-legal-challenges-and-prospects-for-criminal-justice
Author & Publication Record
Authors: SHAILESH KARKHUR
Registration ID: 107102 | Published Paper ID: WBL7102
Year: Sep- 2026 | Volume: 4 | Issue: 1
Approved ISSN: 2581-8503 | Country: Delhi, India
Page No.: 841-851
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