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Introduction to Questioned Document and Its Classification
Learn the basics of questioned documents and their classification in forensic science, including types like questioned vs. standard documents, requested and admitted samples, and latent or patent documents
QUESTIONED DOCUMENT
3/8/20263 min read
Introduction to Questioned Document and Its Classification
Objectives
What is a document
Questioned document
Classification of Documents
Questioned document and standard documents
Requested sample and admitted sample
Different types of documents based on nature
Classification of document based on visibility
Latent or patent
What is a Document
According to Section 3 of Indian Evidence Act of 1872 and Section 29 of Indian Penal Code, a document may be defined as under:
“Document means any matter expressed or described upon any substance by means of letters, figures or marks or by more than one of those means, intended to be used or which may be used for purpose of recording that matter.”
A document is something that keeps a record of events or things so that we don't forget the information.
Most times, documents are written, but they can also be made with pictures and sounds.
Examples
A writing is a document
Words printed or photographed are documents
A map or plan is a document
An inscription on a metal plate or stone is a document
A newspaper is a document
Questioned Document
Any questioned document refers to:
A piece of writing whose authenticity is challenged
Any document that is potentially disputed in the court of law
These types of documents are also referred to as disputed or contested documents
A Document Can Be Questioned If
Unknown source of documents
Authenticity is questioned
Conflict attached
Author unknown
Bank cheque – addition of number like 0 in amount or signature can be challenged
Wills – change in names and property amount or alteration in wills
Currency notes – fake or original
Suicide notes – whether written by the same person or not
Passports – original or fake
Age of a document can be challenged (e.g., historical manuscripts)
Ink examination etc.
Classification of Documents
Classification of documents based on forensic purpose
B. Questioned Document
Holographic Documents
A. Standard Documents
Requested Documents
Admitted Documents
Questioned Documents
Questioned documents are any documents whose authenticity, origin, or authorship is in doubt and may be subject to forensic examination—often in legal or criminal investigations.
A document becomes questioned when:
Its signature, handwriting, or content is disputed
It may have been altered, forged, or tampered with
Its source, date, or method of creation is unclear
Questioned documents are marked as Q1, Q2, Q3, etc.
Holographic Document
These are handwritten documents created and signed entirely by the person to whom they belong — no typing, printing, or digital tools involved.
They are most commonly associated with wills, but can also include letters, contracts, or other legal declarations.
Validity varies by jurisdiction: some countries accept holographic wills as legally binding, while others require witnesses or notarization.
Authenticity can be challenged and may require handwriting analysis.
Examples
A soldier writing a will in the field
A person jotting down final wishes during a medical emergency
A personal letter acknowledging debt
Standard Documents
A standard document is a document which may be pre-written or can be made to write for the purpose of comparison.
Standard documents are of two types:
1. Admitted Document
An admitted document refers to a piece of writing or signature that is acknowledged as genuine by the person involved.
Typically accepted by the suspect or the person whose handwriting is under examination.
Includes pre-written documents such as:
Notes
Answer sheets
Bank signatures
These documents are used to compare the questioned document to determine genuineness.
Marking format: A1, A2, A3, etc.
2. Requested Documents
A requested document is a handwriting or signature specimen written at the request of investigators or forensic experts for comparison.
Also called requested exemplar or requested known specimen.
Written under controlled conditions, usually in the presence of a witness.
Requested samples help forensic document examiners to:
Match letter shapes, slants, spacing, and pressure patterns
Reproduce the same words or phrases found in the questioned document
Ensure authenticity because the sample is written on the spot
Classification of Documents Based on Nature
1. Bank Documents
Fixed Deposit / Time Deposit Receipts
Bonds
Specimen signature cards
Account opening forms
Cheques and drafts
2. Educational Documents
Migration / Registration certificates
Date of Birth certificates
Transfer certificates
Mark sheets
Diploma / Degree certificates
3. Property Documents
Property papers
Bills
Wills
4. Personal / Security Documents
PAN card
Aadhaar card
Family ID
Passports
5. Miscellaneous Documents
Suicide notes
Holographic documents
Shopping bills
Classification of Documents Based on Visibility
Questioned documents
Latent (Invisible) documents
Patent (Visible) documents
Latent Documents
Writing which is not visible to the naked eye and needs to be developed.
Examples:
Indented writing
Erased portions
Secret writing
Patent Documents
Writing which is visible and can be directly compared.
Examples:
Handwriting comparison
Signature comparison
Overwritten documents

Introduction to Questioned Document and Its Classification
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