ON PETITION TO TRANSFER
This is an interlocutory appeal challenging a trial court's order enjoining a defendant's former employee from consulting with, or providing trial or deposition testimony on behalf of, the plaintiff in a wrongful death products liability case. The Court of Appeals affirmed. Hayworth v. Schill Leasing, Inc.,
Plaintiff-appellant Ruth Hayworth filed a wrongful death action against defendant Fruehauf Corporation, among others, 1 after her husband was killed May 9, 1988, in a work-related accident involving a dump trailer manufactured by Fruehauf. During her pre-trial investigation and discovery, the plaintiff retained George Hagelthorn, a registered professional engineer, as an expert witness. Hagelthorn had been employed as an engineer by Fruchauf from 1965 until his retirement in 1982. Hagelthorn thereafter formed his own consulting corporation, provided technical advice and expert testimony to plaintiffs' attorneys in products liability litigation, and testified on behalf of Fruchauft in thirteen or fourteen lawsuits. Record at 334. On the day before Hagelthorn was to be deposed by one of the other defendants, Fruchauf asked the trial court to enjoin *167 Hagelthorn from consulting with or testifying for any person or attorney participating in the litigation. The trial court ordered the Hagelthorn deposition stayed pending its resolution of Fruehauf's motion.
Thereafter, Fruehauf initiated an action against Hagelthorn in the Cireuit Court for Wayne County, Michigan, seeking injunctive relief to prevent Hagelthorn from acting as an expert witness or consultant in any litigation brought by any plaintiff against Frue-hauf. Following preliminary proceedings and a hearing, the Michigan court denied Fruehauf's motion for preliminary injunction and dismissed the petition for permanent injunction. The trial court was subsequently affirmed. Fruchauf Trailer Corp. v. Hagelthorn,
In this appeal, the plaintiff identifies three grounds for her contention that the trial court erred in precluding Hagelthorn's participation as an expert witness: (1) collateral estoppel; (2) work-product or attorney-client privilege; and (3) public policy. We decline to consider the public policy issue as an independent claim of error but will consider plaintiff's public policy arguments within our analysis of the remaining two issues.
The grant or denial of an infunction is within the trial court's sound discretion and will only be reversed upon a finding that the court has abused that discretion. Amoco Production Co. v. Laird,
Collateral Estoppel
In this appeal, the plaintiff first contends that the injunction is erroneous because collateral estoppel operates to bar Fruchauf from relitigating an issue previously determined against it in the Michigan proceeding. Collateral estoppel generally "operates to bar a subsequent relitigation of the same fact or issue where that fact or issue was necessarily adjudicated in a former suit and the same fact or issue is presented in the subsequent lawsuit." Sullivan v. American Casualty Co.,
In order for collateral estoppel to apply here, the fact or issue necessarily adjudicated in the former Michigan proceeding must be the same fact or issue presented by this case. See Sullivan,
In her memorandum in opposition to Frue-haut's motion to preclude and enjoin Hagel!-thorn from either testifying or communicating with any party regarding Fruchaufs trade secrets, confidential information, and matters of attorney-client privilege or work-product, the plaintiff argued to the trial court that Fruehauf should be collaterally estopped because "the issues involved in the Michigan case were identical in all relevance [sic]} to the issues presented by Fruchauf's present motion." Record at 314. The plaintiff did not specifically assert that the Michigan court had adjudicated the individual issue of attorney-client privilege upon which Frue-hauf was collaterally estopped. Rather, the plaintiff argued that the refusal of the Michigan court to enjoin Hagelthorn operated broadly as a complete bar to Fruchauf's motion. Unlike Fruehauf's motion in the present case, however, the Michigan ruling did not encompass issues of trade secrets, confidential information, or work product. See Record at 388, 344. Because Fruchaut's requested infunction in this case covered issues not litigated in the Michigan proceeding, collateral estoppel does not entirely foreclose Fruchaut's request for injunctive relief. 6
Work-Product Doctrine and Attorney-Client Privilege
The plaintiff next contends that the attorney-client privilege and the work-product doctrine should not broadly prevent Hagel-thorn from all consulting and testimony in this case. The plaintiff further argues that no attorney-client privilege applies because Hagelthorn was neither an attorney nor an agent of Fruehauf's attorneys. She argues that work-product protection is inapplicable both because it shields only documents and tangible items, not general engineering knowledge, and because claims of work product must be asserted and considered on a particularized, document-by-document basis. The plaintiff further argues that Fruchauf *169 has waived any work-product or attorney-client privilege claims by utilizing Hagelthorn as an independent expert witness on behalf of Fruchauf. Fruehauf responds by arguing that the trial court record shows that "Hagel-thorn was an agent of Fruchauf lawyers and was privy to information protected by the attorney-client privilege and the attorney work product doctrine." 7 Brief of Fruechauf Corporation, Appellee at 22.
We first observe that courts disfavor blanket claims of privilege such as that asserted by Fruchauf. Petersen v. U.S. Reduction Co.,
The plaintiff argues that Fruechauf waived the privilege with regard to all matters when it called Hagelthorn as an expert witness in unrelated litigation. The Michigan trial court noted in its bench opinion that Fruchaut itself utilized Hagelthorn as an expert witness about thirteen or fourteen times between the years 1982 and 1986. Record at 334. While the attorney-client privilege is waived with respect to matters disclosed in previous testimony, Taylor v. Taylor,
Although rare circumstances might exist in which a blanket claim of privilege might prevail, they are not present here. The record does not support any argument that Hagelthorn's participation in this case would present a substantial, unavoidable risk of disclosure of a matter constituting a trade secret, covered by attorney-client privilege, or otherwise confidential. Because Hagel-thorn might thus feasibly testify about various matters without violating any privileges or revealing trade secrets or other confidential matters, the complete prohibition of Hagelthorn's participation in the case is improper. -If Fruehauf wishes to prevent the disclosure of specific communications or particular materials, it may seek such limited protection and must demonstrate its entitlement thereto. As to Hagelthorn's deposition or trial testimony, Fruchauf may seek relief from the trial court on a question-by-question basis. 8
*170
Fruehauf further argues that the trial court's order is supported by American Motors Corp. v. Huffstutler,
Huffstutler was employed by AMC as an engineer in 1974 and thereafter attended law school with partial assistance from AMC, became a lawyer, served as general manager of the AMC Product Design Studies Group, and "worked intimately with the legal department and its privately retained counsel in products lability cases involving AMC Jeep, particularly 'rollover' claims." American Motors Corp.,
In contrast to Huffstutler, an attorney, who one year following the termination of his AMC employment was ordered to return all AMC materials that he had removed without AMC's consent and was enjoined from testifying and consulting regarding products liability litigation involving AMC, id. at 117-18, the witness at issue here is a non-attorney who operated an independent engineering consulting firm for over six years following his retirement from Fruechauf and who was not found by the trial court to have unlawfully removed any protected documents from his former employer. Because of the substantial factual distinctions and our state's preference for individualized, rather than blanket, determinations of claims of privilege, we do not reach the same result as did Ohio in Huffstutler.
Amicus curiae Indiana Defense Lawyers Association urges the application of the approach utilized in Cua v. Morrison,
In Canfield, a personal injury action, the trial court had quashed subpoenas requesting all of the plaintiff's medical records and had granted a protective order prohibiting the defendant from seeking those records from the plaintiffs treating physicians. Id. at 527-28. Although affirming the rulings of the trial court, we noted that when the privi *171 lege is asserted, "the trial court must review the contested materials and determine whether the claim of privilege is justified or mistaken." Id. at 531. We further observed:
The expectation of all parties should be that ... requested documents are either relevant and discoverable or irrelevant but innocuous such that no harm will result from disclosure, that discovery will proceed without the court's participation, and that invocation of the privilege will be reserved to protect from discovery information about only those conditions of the most intimate nature.
Id.
In Cua, the trial judge was found to have abused his discretion by ordering a personal injury plaintiff to sign a release allowing defense counsel to engage in ex-parte communication with the plaintiffs medical care providers, for the reason that this method "poses a substantial threat that privileged information would be disclosed and that such information is not required for fair and efficient trial preparation." Cua,
The relationship of patient to physician is a particularly intimate one. To the physician we bare our bodies and or [sic] psyches. We do that in confidence that what is seen and heard will remain unknown to others. The protection of that confidential relationship is worth some inconvenience to the legal process.
Id. at 596.
We need not decide in the present case whether the structural equivalence of the physician-patient and the attorney-client privileges necessarily requires completely symmetrical application or whether the unique personal intimacy that characterizes the physician-client privilege demands specialized enforcement methodology. In both Sandock and Cua, the existence of the confidential relationship and the resulting privilege was unquestioned, and the information sought to be discovered was clearly derived from that relationship.
In contrast to Sandock and Cua, wherein the existence of a physician-patient relationship and its attendant obligation of confidentiality was not in dispute, in the present case the parties vigorously dispute whether non-attorney Hagelthorn's relationship to Frue-hauf and its attorneys created enforceable obligations of confidentiality and attorney-client privilege. Furthermore, unlike a physician's knowledge of her patient's medical history, the vast substance of Hagelthorn's general professional engineering knowledge necessarily embodies information not claimed to be privileged. This is not a case calling for extraordinary court action to protect presumptively confidential information.
Although the trial court noted Fruchauf's argument that Hagelthorn had been "privy" to communications protected as work-product or attorney-client privilege, the injunction was not limited to precluding disclosure of specific documents or information that may have fallen within such protections but imposed a blanket restriction upon his right to communicate regarding any and all matters, including his general engineering knowledge and expertise. We conclude that it was an abuse of discretion to enjoin Hagelthorn generally from all consulting and testifying in this case. If Fruehauf seeks to prevent Hagelthorn from the alleged unlawful disclosure of specific information that was obtained by Hagelthorn during his employment and that may be entitled to protection under law, the disclosability of such information is preferably resolved by individual, particularized consideration and adjudication.
We vacate the trial court order granting Fruehauf's motion to enjoin Hagelthorn's participation in this case. This case is remanded to the trial court for further proceedings consistent with this opinion.
Notes
. Also named in her lawsuit were Schilli Leasing, Inc., Schilli Transportation Service, Inc., Schilli Motor Lines, Inc., and Geupel DeMars, Inc. Hayworth reached a settlement agreement with Schilli Transportation Service and Schilli Motor Lines; Geupel DeMars's motion for summary judgment was granted as to all of Hayworth's claims against it. As a result, Fruchauf is the only remaining defendant for purposes of this appeal.
. The trial court order enjoined Hagelthorn "from testifying in this action, either upon deposition or at trial, and from consulting or discussing with or disclosing to any party in this action, directly or indirectly, Fruehauf Corporation's trade secrets, confidential information, or matters of Attorney-client privilege or work-product." Record at 462-63.
. When used "defensively," collateral estoppel forecloses a plaintiff from asserting a claim that the plaintiff had previously litigated and lost against another defendant. "Offensive" collateral estoppel bars a defendant from relitigating an issue the defendant previously lost against another plaintiff. Parklane Hosiery Co. v. Shore,
. We note in passing that the present case involves the use of defensive, rather than offensive, collateral estoppel. Plaintiff Hayworth is seeking to prevent Fruchauf from relitigating an issue that Fruehauf previously lost as a plaintiff. With respect to Fruehauf's motion seeking affirmative relief to prevent Hayworth from access to Hagel-thorn as a consultant and expert witness, Frue-hauf is in a position analogous to that of a plaintiff seeking a form of relief that was previously denied to it as a plaintiff in another judicial proceeding.
. The injunction requested by Fruehauf "was not limited to specific litigation or confidential information but sought to prevent [Hagelthorn] from providing any services that related in any way to" Fruchauf. Fruchauf Trailer Corp,
. We express no opinion as to whether the decision in the Michigan proceeding may provide a basis for collateral estoppel on the individual issue of attorney-client privilege.
. The attorney-client privilege is rooted in Indiana's case law, see Brown v. State,
. Because of Fruchauf's contention that Hagel- ' thorn was -an agent of Fruchauf's lawyers, we note that for the attorney-client privilege to attach to communications between the agent of an attorney, the communication in question must be "made to the agent upon the same subject matter about which the attorney was consulted," and the agent aust have been "retained by the attorney for the purpose of assisting him and rendering legal advice to or conducting litigation on behalf of the client." Brown v. State,
We note that Fruehauf and amicus Indiana Defense Lawyers Association appear to have misapprehended the roles of the various players with respect to application of the privilege in arguing that Hagelthorn was an agent of the attorney with regard to conversations between Hagel-thorn and the attorneys. Such conversations would not constitute attorney-client communications. With regard to an internal communication between an attorney and an attorney's agent, the proper privilege to assert might be work product, but it is not the attorney-client privilege.
