Witness:
Any person who deposits evidence in the court to prove or disprove any matter in question.
Types:
According to the nature of the evidence, the witness is divided into three categories:
1. Common
2. Expert &
3. Scientific witness
Common:
A common witness is a person who gives evidence straight from their own words about the facts observed or perceived by their senses.
Expert:
An expert witness is a person who has been trained or is skilled in a technical or scientific subject and is capable of giving opinions and conclusions from the facts he observes by himself or notices by others. Examples include a Doctor, a firearm expert, a fingerprint expert, etc.
Scientific:
A scientific witnes gives evidence that he has been observed or perceived using scientific instruments or technologies, e.g., pathologists, chemical examiners, videographers, etc.
According to the truthfulness of the evidence, the witnes is divided into two categories:
1. Hostile
2. Perjury
A “perjury witness” generally refers to a person who has either committed perjury or is a witnes in a case where perjury is involved.
Perjury itself is the act of knowingly lying or making false statements while under oath, typically in a legal proceeding. If someone is a “perjury,” it could mean they are either.
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A person accused of perjury: They are under suspicion for providing false testimony under oath and are being questioned about their statements.
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A person who witnessed perjury: They may have seen or have knowledge of someone else committing perjury and may be called to testify about it in a legal case.
In either case, perjury is a serious offence, as it undermines the integrity of the legal system. If proven, it can result in criminal charges and legal penalties.