Dеfendant Swiderek has appealed to this court from the district court’s grant of a preliminary injunction whiсh prohibited Swiderek from printing, publishing, or selling a book of lock and key code numbers in competition with a book copyrighted by plaintiff Medeco. The books inform locksmiths how to produce various keys to fit Medeco’s “high-security” locks and for many years Medeco has made its code book available only to those locksmiths who have purchased Medeco’s key-making machines. Appellant contends that he obtained the *38 code information contained in his book only by personally examining and measuring tens of thousands of Medeco’s publicly available keys. Medeco, on the other hand, claims that appellant obtained the information simply by expropriating the data in Medeco’s bоok in violation of its copyright protection. The district court accepted Me-deco’s theory and granted the preliminary injunction without briefing or holding any type of a prior hearing. The court statеd, however, that its factual findings were “subject to further consideration if conflicting evidence is adduced by defendant.... ”
We do not believe the district court's granting of an injunction can be upheld. Our conclusion is not based upon the court’s opinion on the merits of this controversy, but rather concerns the proсedures utilized by the court in granting the injunction. It is well established that, in general, a motion for a preliminary injunctiоn should not be resolved on the basis of affidavits alone. Normally, an evidentiary hearing is required to decide credibility issues.
Forts v. Ward,
Such conflicts must be resolved by oral testimоny since only by hearing the witnesses and observing their demeanor on the stand can the trier of fact detеrmine the veracity of the allegations made by the respective parties. If witnesses are not hеard the trial court will be left in the position of preferring one piece of paper to another.
* * * 5(C * *
Rule 65(b) provides that no preliminary injunction shall be issued without notice to the adverse party. Nоtice implies the opportunity to be heard. Hearing requires trial on the issue or issues of fact. Trial on the issue of fact necessitates opportunity to present evidence and not by only one side of the controversy.
Id.
at 88 (footnotes omitted). This holding was reaffirmed in
SEC v. Frank,
Wе conclude that the application of these tests to the present case requires the holding of an evidentiary hearing prior to the issuance of the preliminary injunction. Here, the trial court’s decision was reached without the holding of any hearing whatsoever and in the absence of any affidаvits or even a verified complaint. The “facts” that the district court determined did not support appellant’s defense were derived solely from the direct examination of appellant by
Medeco
during apрellant’s deposition, and the consequent “cross” examination of appellant by his own counsel. This foundation for the trial court’s conclusion regarding the merits of appellant’s defense was insufficient.
Dopp v. Franklin National Bank,
VACATED AND REMANDED.
