Challenging the credibility of a witness is a key tactic in many criminal defense cases. Attorneys may use several methods to achieve this, such as
Highlighting inconsistencies in the witness's testimony
Revealing potential biases or motives to lie
Presenting evidence that contradicts their statements
Additionally, the attorney may question the witness's character or past behavior if it is relevant to their credibility. Successfully undermining the credibility of a witness can weaken the prosecution's case.