99 (6th Cir. 2007)(Perlman jurisdiction "does not depend on the validity of the appellant's underlying claims for relief'); Gill v. Gulfrtream Park Racing Ass 'n, Inc., 399 F.3d 391, 398, 402 (1st Cir. 2005)(asserting jurisdiction under Perlman, but concluding that informant privilege was not available to private