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Nemo bis vexari debet pro una et eadem causa

Maxim
Criminal
Literal meaningNo one should be troubled twice for the same cause
PronunciationNAY-moh bis vex-AH-ree DEB-et proh OO-na et eh-AH-dem COW-za

A person must not be tried or punished twice for the same offence. This is the idea of double jeopardy. It protects people from repeated harassment by the State.

Example

A person is acquitted of theft after a full trial. The State cannot try him again for the same theft.

Statutory link
  • Article 20(2) of the Constitution: no person is prosecuted and punished for the same offence more than once.
  • Section 300 of the Code of Criminal Procedure (now the Bharatiya Nagarik Suraksha Sanhita) bars a second trial on the same facts.
Exceptions / limits

The protection applies only after a trial before a competent court ends in acquittal or conviction. A fresh trial is allowed where the earlier trial was not competent.

Exam tip

Asked as double jeopardy under Article 20(2).

Memory trick

Once tried, never tried again.

Key takeaway

A person cannot be tried twice for the same offence.

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