​KembaraXtra-Indian Evidencne Law - Bharatiya Sakshya Adhiniyam 2023-Previous Bad Character Not Relevant, Except in Reply — Section 49 
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Section 49 lays down an important protection in criminal trials: an accused cannot be convicted merely because he is a person of bad character.
Therefore, as a general rule, the prosecution is not allowed to lead evidence showing that the accused is a habitual criminal, immoral person, or has a bad reputation.

Main Rule
In criminal proceedings, the fact that the accused has a bad character is irrelevant.
The prosecution cannot introduce such evidence as part of its main case to prove guilt.
The purpose of this rule is to ensure a fair trial. The court must decide the case based on the evidence relating to the offence charged, not on the personality or past reputation of the accused. Otherwise, a person could be punished for his past conduct rather than for the present offence.

When Bad Character Becomes Relevant (Exceptions)
1. When the accused gives evidence of good characterIf the accused himself introduces evidence showing that he is a person of good character, then the prosecution is allowed to rebut it by proving bad character.
In other words, the accused “opens the door.”
Once he relies on good character as a defence, the prosecution may show the opposite.

2. When character itself is a fact in issue (Explanation 1)
Section 49 does not apply when character is directly involved in the case.
Example:

• In defamation cases, the reputation of the plaintiff is itself the issue. Therefore, evidence of bad character is relevant.
• Proceedings against habitual offenders (e.g., habitual robber or housebreaker) also require proof of character.

In Mangal Singh v State of Madhya Pradesh, the Supreme Court allowed evidence revealing unpleasant aspects of the accused’s character because it helped determine motive, not merely guilt.

3. Previous conviction as evidence of bad character (Explanation 2)
A previous conviction is relevant as evidence of bad character.
Thus, earlier convictions may be considered:

• for assessing character,
• for determining punishment,
• for showing motive or state of mind in certain situations.

Under criminal law, repeat offenders may receive enhanced punishment, and prior convictions may therefore become relevant.

Meaning of “Bad Character”
The law does not specifically define bad character.
Generally, it refers to a person’s criminal tendencies, immoral conduct, or reputation for wrongdoing.

Important Principles Derived from Section 49

1. The prosecution cannot begin a case by saying:
   “The accused is a bad man, therefore he committed the crime.”
2. The accused must be judged for the act charged, not for his past life.
3. Evidence of bad character becomes admissible only:
   • to rebut evidence of good character, or
   • when character itself is directly in issue.
4. A previous conviction is admissible as evidence of bad character.

Relation with Other Character Provisions

• The good character of the accused is relevant in criminal cases (Section 47).
• The sexual character or past sexual experience of the victim is irrelevant in rape cases (Section 48).
• Bad character of the accused is irrelevant except in reply (Section 49).

Conclusion
Section 49 embodies the principle that criminal liability depends on proof of the offence, not on reputation.
A person is not punished for being a bad individual but for committing a specific unlawful act. Only when the accused relies on his good character or when character is directly in issue can the prosecution introduce evidence of bad character.