Introduction
The existence and extent of the accused's constitutional right to present evidence
The existence of a civil litigant's constitutional right to present evidence
Procedural restrictions on the admissibility of defense evidence
Rules rendering persons incompetent as witnesses at trial
Rules excluding logically irrelevant evidence
Rules requiring proof of the underlying logical relevance of evidence: the personal knowledge and authentication doctrines, including the validation of scientific evidence rules of logical evidence
Legal relevance doctrine excluding evidence due to probative dangers such as prejudice and time consumption
Legal relevance rules limiting the admissibility of evidence logically relevant to impeach adverse witnesses
Legal relevance rules limiting the admissibility of evidence logically relevant to the historical merits - character evidence
Common-law and statutory privileges that exclude logically relevant evidence to promote extrinsic social policies
Privileges which exclude logically relevant information to protect the constitutional rights of private persons
Government privileges
The best evidence and opinion rules excluding unreliable testimony
The hearsay rule excluding unreliable testimony
Defense advocacy for the accused's rights
Conclusion.