This is an appeal by New York State prisoners from a judgment of the District Court for the Southern District of New York (Leonard B. Sand, Judge) granting summary judgment in favor of New York corrections officials in the prisoners’ suit challenging the reliability of urinalysis drug test results for use as evidence sufficient to warrant prison discipline. The tests are performed by State officials using the Syva Company’s EMIT-st urinalysis drug detection kits. Evidence before Judge Sand established that the testing procedure — an initial test and a subsequent confirming test — has an accuracy of at least 98%. Though the risk of false positives has not been entirely eliminated, we agree with Judge Sand that use of the test results may be relied upon as sufficient evidence to warrant prison discipline under the standards of Superintendent v. Hill, 472 U.S. 445, 454-55, 105 S.Ct. 2768, 2773, 86 L.Ed.2d 356 (1985). We also agree that the detention prior to the disciplinary hearings was administrative and conformed to the requirements of due process. See Hewitt v. Helms, 459 U.S. 460, 103 S.Ct. 864, 74 L.Ed.2d 675 (1983); Bolden v. Alston, 810 F.2d 353 (2d Cir.), cert. denied, — U.S. -, 108 S.Ct. 229, 98 L.Ed.2d 188 (1987).
On the basis of Judge Sand’s well-reasoned opinion, reported at 675 F. Supp. 102, we affirm the judgment of the District Court.