Discussion of the following items can help to develop an effective cross-examination.

1. Attack Field of Expertise.
2. Bias.
3. Chain of Custody.
4. Didn't Do.
5. Equipment.
6. Factual Basis.
7. Going Beyond Scope of Expertise.
8. Help Opponent's Case.
9. Impeach.
10. Journals and Treatises.
11. Keep Leading.
12. Laboratory Protocol.
13. Money.
14. No Personal Knowledge.
15. Others' Work Forming Basis of Opinion.
16. Proficiency Testing.
17. Qualifications.

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