Summary

Frank Murphy Hickman v. Taylor — Opinion of the Court

Discovery concededly may work to the disadvantage as well as to the advantage of individual plaintiffs. Discovery, in other words, is not a one-way proposition. It is available in all types of cases at the behest of any party, individual or corporate, plaintiff or defendant. The problem thus far transcends the situation confronting this petitioner. And we must view that problem in light of the limitless situations where the particular kind of discovery sought by petitioner might be used.
We agree, of course, that the deposition-discovery rules are to be accorded a broad and liberal treatment.
Source: Wikisource

Frank Murphy Hickman v. Taylor — Opinion of the Court

Mutual knowledge of all the relevant facts gathered by both parties is essential to proper litigation. To that end, either party may compel the other to disgorge whatever facts he has in his possession. The deposition-discovery procedure simply advances the stage at which the disclosure can be compelled from the time of trial to the period preceding it, thus reducing the possibility of surprise. But discovery, like all matters of procedure, has ultimate and necessary boundaries.
Source: Wikisource

Frank Murphy Hickman v. Taylor — Opinion of the Court

Not even the most liberal of discovery theories can justify unwarranted inquiries into the files and the mental impressions of an attorney.
Historically, a lawyer is an officer of the court and is bound to work for the advancement of justice while faithfully protecting the rightful interests of his clients. In performing his various duties, however, it is essential that a lawyer work with a certain degree of privacy, free from unnecessary intrusion by opposing parties and their counsel.
Source: Wikisource

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