The Accused as a Competent Witness under Section 21 PC Act
Section 21 permits a person charged with a PC Act offence to testify for the defence. The accused becomes a competent witness only on a written request; the prosecution cannot compel the accused to enter the witness box.
Voluntary choice
The decision must be informed. Testifying permits the accused to explain transactions and official processes directly but opens the evidence to cross-examination. Remaining silent cannot be made the subject of improper comment or a presumption of guilt.
Scope of questioning
Cross-examination should concern the charge and relevant credibility. Questions aimed only at proving bad character are restricted except in the circumstances stated by the provision.
Interaction with Article 20(3)
The constitutional right against compelled self-incrimination remains intact. Section 21 creates an opportunity, not an obligation. Earlier compelled material must still satisfy constitutional and evidentiary law.
When testimony may assist
In a disproportionate-assets case, the accused may explain control, family income or a disputed loan. In a trap case, testimony may explain a lawful payment. Documentary evidence and independent witnesses may sometimes present the defence with less risk.
Section 21 respects defence autonomy: the accused may speak under oath, but the State cannot turn that choice into compelled self-prosecution.
Sources
Prevention of Corruption Act, 1988, Section 21: https://indiacode.nic.in/bitstream/123456789/9317/1/corruptiona1988-49.pdf
Constitution of India, Article 20(3): https://www.indiacode.nic.in/handle/123456789/15240
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