The Himachal Pradesh Public Service Commission (HPPSC) conducts the recruitment process for the post of Scientific Officer (NDPS), Group-B, under the Directorate of Forensic Services, Home Department, Himachal Pradesh. A key stage of this recruitment is the descriptive Subject Aptitude Test (SAT). Understanding the syllabus and exam pattern together helps candidates plan their preparation subject-wise and manage the three-hour paper effectively. This article covers the official SAT syllabus and pattern as released by HPPSC.
Direct Link to Download HPPSC Scientific Officer Syllabus 2026 PDF Here
HPPSC Scientific Officer Syllabus and Exam Pattern 2026 - Overview
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| Particulars | Details |
|---|---|
| Conducting Body | Himachal Pradesh Public Service Commission (HPPSC) |
| Post | Scientific Officer (NDPS), Group-B |
| Department | Directorate of Forensic Services, Home Department, H.P. |
| Exam Stage Covered in This Syllabus | Subject Aptitude Test (SAT) - Descriptive |
| Total Marks | 120 |
| Duration | 3 Hours |
| Number of Parts | 2 (Part-I and Part-II, 60 marks each) |
| Question Type | Descriptive |
| Official Website | hppsc.hp.gov.in |
HPPSC Scientific Officer (NDPS) Exam Pattern 2026
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SAT (Subject Aptitude Test) Exam Pattern
| Part | Marks | Broad Coverage |
|---|---|---|
| Part-I | 60 | Units I to VI (Forensic Science fundamentals, Crime Scene Management, Dactylography, Instrumental Methods, Chemometrics & Quality Management, Research Methodology & Ethics) |
| Part-II | 60 | Units VII to XII (Chemistry basics, Narcotic Drugs & Psychotropic Substances, Forensic Chemistry, Analytical Chemistry, Sample Preparation & Separation Techniques, Forensic Pharmacology) |
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HPPSC Scientific Officer (NDPS) Syllabus 2026
The SAT syllabus is divided into two parts covering twelve units in total. Part-I focuses on core forensic science subjects, while Part-II focuses on chemistry, narcotics, and forensic pharmacology relevant to the NDPS (Narcotic Drugs and Psychotropic Substances) specialization.
Part-I Topics (60 Marks)
1. Unit I - Forensic Science Fundamentals
- Definition, nature, scope, history and development of forensic science in India and abroad
- Forensic organizations: CFSLs, FSLs, DFSS, NCRB, FBI, INTERPOL
- Principles of forensic science: Locard's Exchange Principle, law of natural variation, comparison, probability, individualization, continuous change, Sydney declaration and seven principles
- Disciplines of forensic science; duties and responsibilities of forensic experts
- Frye's and Daubert Standards
- Types of evidence: physical, digital, trace evidence; standard operating procedures for evidence collection and preservation
- Applications of artificial intelligence and machine learning in forensic science
2. Unit II - Crime Scene Management
- Systematic crime scene investigation: securing the scene, identifying, collecting, packaging and forwarding evidence, chain of custody
- Photography, videography, 3D recording, sketching and note preparation; search methods
- Crime scene reconstruction: data collection, hypothesis formulation and testing, reconstruction reports, expert testimony
- Blood stain pattern analysis: droplet formation, directionality, point of convergence and origin, impact spatter
- Reconstruction of road accidents: skid marks, speed determination, evidence from victim/vehicle/scene
- Importance of glass, soil, paint and impact analysis
3. Unit III - Fundamentals of Dactylography (Fingerprints)
- History, development, ridge formation, pattern types and areas
- Principles and classification of fingerprints: Henry system, Battley's single digit classification
- Methods of recording and developing fingerprints from crime scenes, living and dead persons
- Photography and digital transmission of fingerprints
- Comparison of fingerprints: class and individual characteristics
- National Automatic Fingerprint Identification System (NAFIS)
- Biometrics: face recognition, iris, retina and hand geometry
4. Unit IV - Instrumental Methods
- Microscopy: simple, compound, comparison, fluorescence, polarized, stereo, infrared, SEM, FESEM, TEM, SPM, STEM, AFM, Quantum 3D, Confocal, video spectral comparator (VSC)
- Atomic Spectroscopy: AAS, Graphite Furnace AS, AES, ICP-MS
- X-Ray Techniques: XRD, XRF, Auger Electron Spectrography (ESCA)
- Molecular Spectroscopy: UV-Vis, IR, FTIR, Raman
- Electrophoresis: crossover, agarose gel, polyacrylamide gel, SDS, pulse field gel, capillary, immuno-electrophoresis, isoelectric focusing
- Chromatography: TLC, HPTLC, paper, column, HPLC
- Layered Voice Analysis (LVA), BEOS, polygraph, brain mapping, narco-analysis, Integrated Ballistic Identification System (IBIS)
5. Unit V - Chemometrics, Quality Management & Report Writing
- Chemometrics: mean, mode, median, standard deviation, variance, coefficient of variation, t-test, chi-square test, ANOVA, multivariate analysis (PCA, PLS, cluster analysis, discriminant analysis)
- Quality Management Systems: ISO/IEC 17025:2017, ISO 21043, ISO 9001, accreditation, certification, calibration, proficiency testing, LOD, LOQ, verification and validation
- Laboratory Information Management Systems: data protection, traceability, transparency
- Report writing: scientific test reports, scene of crime reports, expert testimony, examination-in-chief, cross-examination, re-examination
- Related laws: BNS, BNSS, BSA 2023, IT Act 2000, POCSO Act, NDPS Act, MVA Act
6. Unit VI - Research Methodology & Ethics
- Research design, hypothesis formulation, sampling, data collection techniques, statistical interpretation, literature review, scientific paper writing
- Plagiarism: types, detection tools, ethical responsibilities
- Citation index and impact factor
- Ethics in forensic science
Part-II Topics (60 Marks)
7. Unit VII - Basics of Physical, Inorganic and Organic Chemistry
- Properties of alkanes, alkenes, alkynes, aromatic hydrocarbons, alcohols, phenols, carboxylic acids, aldehydes, ketones, amines, nitro compounds
- Stereochemistry: R/S and P/M nomenclature, biaryls, allenes, asymmetric synthesis, pericyclic reactions
- Proteins: classification, structure, properties, molecular weight determination, isoelectric point, coagulation, denaturation
- Carbohydrates, fats and lipids: classification, structure and reactions
- Alkaloids: classification, isolation and identification
8. Unit VIII - Narcotic Drugs & Psychotropic Substances
- Definition, types, appearance, production and chemical characteristics; designer drugs, mode of administration, pharmacological action
- Plants of narcotic importance: Papaver somniferum, Cannabis sativa, Coca plant and their active constituents
- Controlled Substances Act, classification, precursor chemicals, clandestine drug laboratories
- New Psychotropic Substances (NPS): chemical/effect groups, pharmacology, toxicology, UN conventions and legislation
- Extraction, isolation and identification of alkaloids: Morphine, Codeine, Brucine, Strychnine, Nicotine, Atropine, Hyoscyamine, Cocaine, Heroin, Dhatura alkaloids
- Provisions under Drugs Act, Excise Act and NDPS Act
9. Unit IX - Forensic Chemistry
- Preliminary and confirmatory identification methods; volumetric/titrimetric analysis; theory of indicators
- Forensic examination of Phenolphthalein in bribe trap cases
- Corrosive chemicals in acid/alkali throwing cases
- Arson: chemistry of fire, investigation, evidence collection, flammable residue analysis
- Petroleum products: properties, testing, adulteration, BIS specifications, chemical fingerprinting
- Alcohol: types of liquor, intoxication effects, methanol poisoning, breath-alcohol instrumentation
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10. Unit X - Analytical Chemistry
- Classical and instrumental analytical methods; volumetric, titrimetric, gravimetric techniques
- Accuracy, precision, errors, sample preparation, reagent handling safety
- Good Laboratory Practices, SOPs, quality assurance and control, method validation
- Biological/biochemical analysis: pH and buffers, centrifugation techniques, density gradient and ultra-centrifugation
11. Unit XI - Sample Preparation & Separation Techniques
- Liquid-liquid extraction, solvent extraction, Craig's counter-current distribution, microwave-assisted extraction, solid phase extraction
- Separation techniques: partition, adsorption, ion exchange, size exclusion chromatography
- Emerging techniques: GC (Head Space), ICP-MS, X-Ray Spectroscopy, GC-MS, GC-MS-MS, LC-MS, LC-MS-MS, capillary chromatography
- Extraction and purification of drugs/poison from biological samples: Stas-Otto, Dovrijey-Nickolls, acid digestion and Valov methods
12. Unit XII - Forensic Pharmacology
- Pharmacokinetics: absorption, first-pass metabolism, bioavailability, distribution, elimination, half-life, excretion
- Drug metabolism: Phase-1 and Phase-2 reactions; metabolism of benzodiazepines, barbiturates, amphetamines, heroin, codeine, morphine
- Pharmacodynamics and pharmacogenesis
- Drug development: preclinical toxicological studies, LD50 and ED50, Irwin profile test, Lipinski's rule, high-throughput screening
How to Prepare for HPPSC Scientific Officer (NDPS) Exam 2026
- Start with the official syllabus PDF and map each of the 12 units against your existing knowledge to identify weak areas early.
- Since Part-I is forensic-science-heavy and Part-II is chemistry-and-pharmacology-heavy, prepare the two parts as separate blocks rather than mixing topics.
- For instrumental and analytical methods (microscopy, spectroscopy, chromatography), focus on principle, instrumentation and application for each technique, since these repeat across multiple units.
- Practice descriptive answer writing within time limits, as the SAT is a 3-hour descriptive paper rather than objective-type.
- Revise laws referenced in the syllabus (BNS, BNSS, BSA 2023, IT Act 2000, POCSO Act, NDPS Act, MVA Act) alongside the related technical topics.
- Keep a running note of standard drug/alkaloid names and their extraction methods (Unit VIII and Unit XI), as these are detailed and easy to mix up.
HPPSC Scientific Officer Syllabus 2026 - Important Links
- HPPSC Scientific Officer (NDPS) Syllabus PDF: Download Official Syllabus PDF
- Official Notification: Click Here
