FLORIDA v. BOSTICK
"The more appropriate inquiry is whether a reasonable passenger wouldfeel free to decline the officers' request or otherwise terminate theencounter. Thus, this case is analytically indistinguishable from INS v. Delgado,supra. There, no seizure occurred when INS agents visited factories atrandom, stationing some agents at exits while others questionedworkers, because, even though workers were not free to leave withoutbeing questioned, the agents' conduct gave them no reason to believethat they would be detained if they answered truthfully or refused toanswer. Such a refusal, alone, does not furnish the minimal level ofobjective justification needed for detention or seizure."