Expert
Definition
A person specially skilled in foreign law, science, art, identity of handwriting or finger impressions, under BSA 2023 Section 39 (formerly IEA Section 45). Skill may be acquired by training or experience.
- Statute
- BSA 2023 Section 39, successor to IEA 1872 Section 45
- Basis of skill
- Training or experience, either qualifies
- Subject areas named
- Foreign law, science, art, handwriting, finger impressions
- Role
- Gives opinion evidence the court cannot form unaided
Common questions
Does a person need a formal degree to qualify as an expert under this provision?+
No. The statute qualifies a person by being specially skilled, which courts have read to include skill gained through practical experience, though how that skill was acquired still affects the weight given to the opinion.
How does a court decide whether someone qualifies as an expert versus an ordinary witness?+
The court examines the witness's specialised knowledge in the relevant field, through study, training or experience, and confines their testimony to matters genuinely requiring that expertise, unlike an ordinary witness who may only state facts directly perceived.
Is expert opinion under this section binding on the court?+
No. It is one form of evidence weighed alongside everything else; the judge remains the final decision-maker and can accept, reject, or give partial weight to an expert's opinion depending on how convincing the reasoning is.
Related terms
- Admissibility
- Whether a piece of evidence is permitted to be placed before the fact-finder at all. Admissibility is a threshold question, decided by...
- Examination-in-Chief
- The questioning of a witness by the party who called them. For an expert, this is typically limited because the substance is...
- High Court
- Constitutional court under Article 214, one for each state or group of states (25 High Courts as of 2026). Writ jurisdiction under...
- Hostile Witness
- A witness who turns adverse to the party calling them. The court, on application, may permit cross-examination of one's own witness under...
- Magistrate Court
- Trial court for less serious offences. Judicial Magistrate First Class (JMFC), Second Class, and Chief Judicial Magistrate (CJM) under BNSS 2023.
- Pecuniary Jurisdiction
- Monetary limit on the suits a civil court can try (for example a Small Causes Court has a low pecuniary cap).
- Relevancy
- Logical connection of a fact with the fact in issue. Governed by BSA 2023 Sections 6 to 55 (carrying forward IEA Sections...
- Sessions Court
- Highest criminal court at district level under BNSS 2023. Tries offences punishable with death, life imprisonment or imprisonment exceeding seven years. Headed...
- Subject-Matter Jurisdiction
- Restriction by case type (POCSO court hears child sexual offences; MACT hears motor-accident claims; family court hears matrimonial disputes).
- Supreme Court of India
- Apex court under Article 124 of the Constitution. Original, appellate, advisory and writ jurisdiction. Seat at New Delhi; benches sit only by...
- Territorial Jurisdiction
- Geographic area within which a court can take cognisance. A theft in Pune is tried by a Pune court, not a Mumbai...