What is the point of establishing 'impeachment' of a witness in a civil case?

If a witness is impeached, are they a no good witness? Does it discredit their character? Can they still be a witness etc???

Gresham, OR -

Attorney Answers (3)

Jay Bodzin

Jay Bodzin

Family Law Attorney - Milwaukie, OR
Answered

Impeachment is the process of demonstrating that a witnesses' testimony was inaccurate. You can do this by introducing other evidence that contradicts their testimony. You can also do this by showing that they're a dishonest person in general, but the ways in which you're allowed to do this are VERY limited. You're not allowed, in general, to impeach with "collateral matters" - i.e., proof that they were dishonest in some totally unrelated context. You can introduce evidence that they were convicted of a crime, to impeach them, but only if it was in the past 15 years, and only if it was a felony or a crime of dishonesty such as perjury or forgery.

An impeached witness still gives testimony and the court still considers that evidence; they're just supposed to consider the impeachment as possibly reducing the persuasiveness of that testimony.

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Jay Bodzin is licensed to practice law in the State of Oregon and... more
Orion Jacob Nessly

Orion Jacob Nessly

Family Law Attorney - Lake Oswego, OR
Answered

I agree with Mr. Bodzin's answer. I'd add that you can also impeach a witness by showing that they are biased or have some incentive not to tell the truth. For example, if they have received money or a reduced sentence for their testimony or if they have something to gain from the outcome of the case.

My responses to posts on AVVO are not legal advice, nor do they create an attorney-client relationship. In order... more
Troy Austin Pickard

Troy Austin Pickard

Criminal Defense Attorney - Portland, OR
Answered

Even if someone is impeached, they can still be a witness. Impeachment just means showing something about the witness that suggests their testimony is wrong.

You could impeach a witness by showing that they are a dishonest crook, for example.

Or you could impeach a witness by showing that they are somehow biased (for example, if they are the grandmother of one of the parties to the case).

Or you could impeach a witness by showing that they could not have observed what they claim to have observed (for example, if there is a man who claims to have seen the bank robber's face, you could impeach him by showing that they have horrible vision and were not wearing their glasses).

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