Ethical violations that may affect an expert's testimony must obviously be avoided.

Examples include:

• Falsifying or altering data.
• Improperly or incompletely performing the investigation or testing.
• Conditionally engaging the expert (threatening retaliation).
• Providing false testimony.
• Intentionally ignoring available data.
• Recanting prior counter positions.
• Engaging in assignments beyond one's competence.
• Accepting unauthorized attorney influence.
• Providing inadequate support or time to complete the assignment.
• Reaching a conclusion before the research is completed.
• Permitting conflicts of interest.
• Producing fraudulent credentials.
• Making payment contingent on desired testimony.

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