* Legal ethics: He has written extensively on the ethical considerations of legal practice and the duties of lawyers.
* Evidence: He has worked on the rules of evidence and their application in court proceedings.
* Constitutional law: He has researched and published works on constitutional issues and their impact on law.
Here are some of his notable works:
* "The Law of Evidence in California," a comprehensive treatise on California evidence law.
* "Ethics for Law Students" and "Ethics for Lawyers," books on the ethics of the legal profession.
* "The Lawyer's Desk Companion," a practical guide for lawyers.
It is highly unlikely that he has written any novels or works of fiction.
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