End-of-life notice: American Legal Ethics Library
As of March 1, 2013, the Legal Information Institute is no longer maintaining the information in the American Legal Ethics Library. It is no longer possible for us to maintain it at a level of completeness and accuracy given its staffing needs. It is very possible that we will revive it at a future time. At this point, it is in need of a complete technological renovation and reworking of the "correspondent firm" model which successfully sustained it for many years.
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Ohio Rules of Professional Conduct
 The procedure of the adversary system contemplates that the evidence in a case is to be marshaled competitively by the contending parties. Fair competition in the adversary system is secured by prohibitions against destruction or concealment of evidence, improperly influencing witnesses, obstructive tactics in discovery procedure, and the like. However, a lawyer representing an organization, in accordance with law, may request an employee of the client to refrain from giving information to another party. See Rule 4.2, Comment .
 Division (a) applies to all evidence, whether testimonial, physical, or documentary. Subject to evidentiary privileges, the right of an opposing party, including the government, to obtain evidence through discovery or subpoena is an important procedural right. The exercise of that right can be frustrated if relevant material is altered, concealed, or destroyed, or if the testimony of a person with knowledge is unavailable, incomplete, or false. Applicable law in many jurisdictions makes it an offense to destroy material for the purpose of impairing its availability in a pending proceeding or one whose commencement can be foreseen. Falsifying evidence is also generally a criminal offense. A lawyer is permitted to take temporary possession of physical evidence of client crimes for the purpose of conducting a limited examination that will not alter or destroy material characteristics of the evidence. In such a case, the lawyer is required to turn the evidence over to the police or other prosecuting authority, depending on the circumstances. Applicable law also prohibits the use of force, intimidation, or deception to delay, hinder, or prevent a person from attending or testifying in a proceeding.
 With regard to division (b), it is not improper to pay a witness’s expenses or to compensate an expert witness on terms permitted by law. It is improper to pay an occurrence witness any fee for testifying and it is improper to pay an expert witness a contingent fee.
[3A] Division (e) does not prohibit a lawyer from arguing, based on the lawyer’s analysis of the evidence, for any position or conclusion with respect to matters referenced in that division.
Comparison to former Ohio Code of Professional Responsibility
DR 7-102, DR 7-106(C), DR 7-109, and EC 7-24, 7-25, 7-26, 7-27 and 7-28 address the scope of Rule 3.4.
Comparison to ABA Model Rules of Professional Conduct
Rule 3.4 is revised to add a “good-faith belief” provision consistent with the holding in State v. Gillard (1988), 40 Ohio St.3d 226. Model Rule 3.4(f) is deleted because its provisions are inconsistent with a lawyer’s obligations under Ohio law, and the corresponding Comment  also is removed. Division (g) is inserted to incorporate Ohio DR 7-109(B).