Seven key qualities identify the effective, credible expert witness.  See Importance of Case Preparation, Topic 3: Preparation: Qualities of an Effective Expert. Consistently applying these qualities can help the expert to use cross-examination in a positive way.

The expert must:

• Perform a thorough investigation.
• Demonstrate effective teaching ability.
• Be generally competent.
• Be believable.
• Persuade, using factual accuracy but without advocacy.
• Demonstrate enthusiasm.
• Be prepared.

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