PW stands for Prosecution Witness. In criminal trials, a Prosecution Witness is a person who gives testimony (evidence) in support of the case presented by the prosecution — i.e., the state’s case against the accused.
When you read a criminal court judgment and see references like “PW-1,” “PW-3,” “PW-7” — these are the witnesses examined by the prosecution, numbered in the order in which they were examined. PW-1 is the first prosecution witness, PW-2 is the second, and so on.
Prosecution witnesses are the backbone of most criminal trials. Their testimony, credibility, and consistency often determine whether an accused is convicted or acquitted.
The Examination Process of a Prosecution Witness
A PW goes through three stages of examination during a criminal trial:
Stage 1: Examination-in-Chief The prosecution (APO, PP, or their advocate) examines their own witness first. The purpose is to elicit evidence that supports the prosecution’s case. Leading questions — questions that suggest the answer — are generally not allowed during examination-in-chief.
Stage 2: Cross-Examination After the prosecution finishes examining the PW, the defence gets to cross-examine the same witness. The defence tries to:
- Challenge the witness’s credibility
- Expose inconsistencies in their testimony
- Elicit facts favourable to the accused
- Suggest that the witness is lying or mistaken
Leading questions are permitted during cross-examination.
Stage 3: Re-Examination If cross-examination raises new issues or creates confusion, the prosecution can re-examine the witness to clarify matters — but only on points raised in cross-examination.
Types of Prosecution Witnesses
Eyewitness — A person who directly saw the crime being committed. PW-1 in many cases is the key eyewitness.
Complainant — The person who reported the crime. Often the first PW in the trial.
Investigating Officer (IO) — The police officer who investigated the case. Almost always a PW, typically testifying last or near the end of prosecution evidence.
Expert Witness — Forensic experts, doctors, handwriting experts — brought as PWs to give specialised opinion evidence.
Panch Witness (Panchnama Witness) — Persons who witnessed the seizure of evidence or the conduct of a panchnama (official record of search/seizure).
Formal Witness — A PW called to prove formal facts — like the doctor who treated the deceased, or the registrar who maintained official records.
Hostile Witness — A Critical PW Concept
One of the most dramatic events in a criminal trial is when a prosecution witness turns hostile. A hostile witness is a PW who, during testimony, gives evidence contrary to what the prosecution expected — often supporting the accused instead.
When this happens, the prosecution can apply to the court to declare the witness “hostile.” Once declared hostile, the prosecution is allowed to cross-examine their own witness — using leading questions to challenge their testimony.
The court must be cautious in evaluating hostile witness testimony. The hostile portions can be discarded, but consistent portions can still be used.
PW vs. DW — Key Differences
| Feature | PW (Prosecution Witness) | DW (Defence Witness) |
| Full Form | Prosecution Witness | Defence Witness |
| Called By | Prosecution | Defence |
| Purpose | Support state’s case | Support accused’s case |
| Examined By | Prosecution first | Defence first |
| Cross-Examined By | Defence | Prosecution |
| Example | Eyewitness, IO, doctor | Character witness, alibi witness |
Frequently Asked Questions (FAQs)
Q: What is the full form of PW in law?
A: PW stands for Prosecution Witness — a person who gives testimony in support of the prosecution’s case during a criminal trial.
Q: What does PW-1 mean in a judgment?
A: PW-1 refers to the first prosecution witness examined in a trial. Witnesses are numbered sequentially as PW-1, PW-2, PW-3, and so on in the order they are called to testify.
Q: Who examines a prosecution witness?
A: The prosecution (APO, Public Prosecutor, or their advocate) examines the PW in chief. The defence cross-examines. The prosecution may re-examine after cross-examination.
Q: What is a hostile witness?
A: A hostile witness is a PW who gives testimony contrary to the prosecution’s case — supporting the accused or contradicting their earlier statement. The court can allow the prosecution to cross-examine their own hostile witness.
Q: What is the difference between PW and DW?
A: PW (Prosecution Witness) testifies for the state. DW (Defence Witness) testifies for the accused. The examination process and purpose are opposite.
Q: Can leading questions be asked of a PW?
A: Leading questions are NOT allowed during examination-in-chief of a PW by the prosecution. However, they ARE allowed during cross-examination by the defence.
Q: What is the Witness Protection Scheme, 2018?
A: The Witness Protection Scheme, 2018 is India’s framework to protect witnesses — particularly prosecution witnesses — from intimidation, threats, and harm. It provides measures like identity protection, secure transport, and relocation for vulnerable witnesses.
Q: Can an investigating officer be a PW?
A: Yes. The Investigating Officer (IO) is almost always a prosecution witness — testifying about the investigation conducted, evidence seized, statements recorded, and steps taken in the case.
