How have the exclusionary rule and pretrial motions to suppress evidence been interpreted in criminal law?

"When the Sixth Amendment was written, and for more than a century after that, no one could have conceived that the exclusionary rule and pretrial motions to suppress evidence would be part of our criminal jurisprudence. The authors of the Constitution, imaginative, farsighted, and perceptive as they were, could not conceivably have anticipated the paradox inherent in a judge-made rule of evidence that excludes undoubted truth from the truth-finding processes of the adversary system. Nevertheless, as of now, we are confronted not with a legal theory but with the reality of the unique strictures of the exclusionary rule, and they must be taken into account in this setting. To make public the evidence developed in a motion to suppress evidence, cf. Brewer v. Williams, 430 U.S. 387 [97 S.Ct. 1232, 51 L.Ed.2d 424] (1977), would, so long as the exclusionary rule is not modified, introduce a new dimension to the problem of conducting fair trials." Id. at 395-96, 99 S.Ct. at 2913-14.