California, United States of America
The following excerpt is from Connecticut Indem. Co. v. Superior Court, 73 Cal.App.4th 540, 86 Cal.Rptr.2d 515 (Cal. App. 1999):
There are several rules of law which pertain to the interest in obtaining such information. One is that, unless the information is pertinent to the merits of the claim or a sufficient case for punitive damages has been shown, the interest of a litigant in obtaining financial information is generally insufficient to overcome the interest in privacy. (See, Doak v. Superior Court (1968) 257 Cal.App.2d 825, 831-834, 65 Cal.Rptr. 193.) Civil Code section 3295 prohibits the pretrial discovery of the financial condition of a defendant without a court order.