buckle ought to be designed to separate only with a maximum amount of force (several thousand pounds) rather than a minimal amount of force. The rationale for the FMVSS 209 standard as it exists, however, is that a partially latched buckle should, given the ejector spring, the retractor system, and any movements of the user, "pop out” during ordinary use, and thus "inform” the user that the seatbelt was not properly latched in the first instance. 3 . The six buckle mechanisms were taken from a 1989 Geo Metro, a 1993 Suzuki Sidekick, two 1994 Isuzu Rodeos (from which a total of three buckles were removed), and a 1993 Geo Storm. The latchplate used in the testing was removed from a 1991 Subaru Justy. 4 . Kumho thus modifies United States v. Jones, 107 F.3d 1147, 1158 (6th Cir.1997) (<HOLDING>) Jones did recognize, however, that Daubert’s
recognizing under fre 702 that there is no clear line dividing testimony based on scientific knowledge from testimony based on technical or other specialized knowledge holding that a single flexible test for reliability applies to all expert testimony holding that a lay witness could not offer opinion testimony that required technical or specialized knowledge of what security measures could or should have been taken to prevent a crime holding that daubert does not create a new framework for analyzing proffered expert testimony based upon technical or other specialized knowledge  holding that in reviewing the district courts decision concerning expert testimony we must first determine whether the district court properly followed the framework set forth in daubert holding that daubert applies not only to testimony based on scientific knowledge but also to testimony based on technical and other specialized knowledge