OPINION
The mandamus petition in this proceeding attacks an order compelling testimony. Relators, Lincoln Electric Company, Hobart Brothers Company, and the BOC Group, Inc., are defendants in a multiparty lawsuit. Relator, Francis W. Weir, was retained by Lincoln, Hobart, and BOC to offer expert testimony. The trial court ordered the expert witness to give deposition testimony regarding his litigation-related income for the years 2002, 2003, and 2004, and the percentage of the total income that is litigation-related. Relators request the order be set aside. We conditionally grant the petition for writ of mandamus.
Weir testified by deposition he has charged $450 an hour in this case, plus expenses, and he has worked 20-25 hours. He was questioned by plaintiffs about his consulting work outside of litigation, but he declined to answer. When asked what percentage of his income came from litigation in the last two years, Weir stated he could not answer because he does not subdivide his records by categories. He testified his accountant told him he has no records of the percentage of his income derived from litigation. When asked to reconstruct his sources of income for the last year, Weir testified as follows:
I believe that that falls within the purview of me and the IRS. And that is my position. And then I will tell you the— my knowledge of my income as it pertains to this case, my rate of income, and my understanding of what I can recollect from my work in litigation as it pertains to matters such as this. I don’t feel it’s either appropriate or anyone’s business, including my wife’s, what else I make.
The plaintiffs filed a motion to compel. Relators opposed the motion and presented Weir’s affidavit explaining he does not maintain his records in a manner that makes the requested information easily obtainable. Weir’s affidavit stated:
In addition, I cannot say with certainty how much time I would have to devote to such an effort. I can say it would be many, many hours, which seems to me unwarranted in light of the information I provided to counsel for Plaintiffs, namely, that I have testified almost exclusively for defendants, I charge $450 per hour, and I had devoted approximately 25 hours to the case, as of the date of the deposition.
Nevertheless, the trial court ordered defendants to produce Weir to testify regarding the percentage of his income that was *864 received from litigation-related work during 2002, 2008, and 2004, and his total income received from litigation-related work for those years.' Relators contend the order exceeds the scope of permissible discovery and intrudes into constitutionally protected privacy interests.
The issue here involves the scope of permissible pretrial discovery. Proof of bias may be offered to impeach the credibility of a witness. Tex.R. Evid. 613(b). Rule 613(b) of the Texas Rules of Evidence further provides: “If the witness unequivocally admits such bias or interest, extrinsic evidence of same shall not be admitted.”
Id.
Generally, an expert witness may be questioned regarding payment received for his work as an expert witness.
Russell v. Young,
Similarly, the Supreme Court has expressed reluctance to permit uncontrolled and unnecessary discovery of federal income tax returns. See
Hall v. Lawlis,
The real parties in interest, plaintiffs, argue Rule 613(b) does not preclude the requested discovery because Weir has not unequivocally admitted a bias or interest. Tex.R. Evid. 613(b). Rule 613(b) is not a discovery rule, but the information sought under the discovery rules should be reasonably calculated to lead to the discovery of admissible evidence. See Tex.R. Civ. P. 192.3(a). Relators cite
Olinger v. Curry,
In Olinger, the appellate court did not permit discovery of an expert witness’s tax returns when the witness had admitted ninety percent of his services were provided to defendants in litigation. Id. at 834. The court reasoned in part as follows:
*865 Subjecting an expert medical witness in a civil case to produce income tax returns merely to show that he is a “defense” doctor, particularly when he has admitted that 90% of his work is for defendants, would permit experts on either side of the case to be subjected to harassment and might well discourage reputable experts from accepting employment in other cases.
Id. at 835. The Olinger court held the trial court clearly abused its discretion in ordering the production of the expert’s tax returns in that case. Id. The court further held there was no adequate remedy by appeal and conditionally granted the petition for writ of mandamus. Id. at 836.
As in Olinger, privacy concerns are implicated by the discovery sought in this case. See
Olinger,
Discovery which is unnecessary or unreasonable does not serve the interest of either party in resolving their dispute. The scope of discovery cannot be unlimited if litigation is to be preserved as an affordable dispute resolution mechanism. See Explanatory Statement Accompanying the 1999 Amendments to the Rules of Civil Procedure Governing Discovery, Order of Approval of the Revisions to the Texas Rules of Civil Procedure, Misc. Docket No. 98-9196 (Tex. Nov. 9, 1998), printed at 61 Tex. Bar J. 1140 (Dec.1998); see also generally
In re Sears,
A writ of mandamus is appropriate if the trial court abuses its discretion and there is no adequate remedy at law.
In re Prudential Ins. Co. of Am.,
PETITION FOR WRIT OF MANDAMUS CONDITIONALLY GRANTED.
