requesting, not demanding, to ask questions or see identification.” INS v. Delgado demonstrates a complex mixture of these factors, making the determination difficult. For example, while the workers were free to move about the factory, INS agents were stationed at all exits, possibly indicating a level of detention. Opinion of the Court Justice William Rehnquist delivered the opinion of the court, which Chief Justice Warren E. Burger and Justices Byron White, Harry Blackmun, Sandra Day O’Connor, and John P. Stevens joined. John P. Stevens filed a concurring opinion in the result. William J. Brennan filed and Thurgood Marshall joined an opinion concurring in part and dissenting in part. Concurring Opinion The Court held that “The factory surveys did not result in the seizure of the entire workforces, and the individual questioning of the respondent employees by INS agents concerning their citizenship did not amount to a detention or seizure under the Fourth Amendment.” The decision is broken down into a few key components. For one, interrogation by members of law enforcement for one’s identity or identification does not in itself constitute a Fourth Amendment seizure. Also, so long as a “reasonable person” would not have reason to believe that he could not leave the questioning, it does not constitute a detention under the Fourth Amendment. While the Court accepted that the ability of the workers to leave the questioning was “meaningfully restricted”, it was restricted by their obligations to their employer and not by the INS. Further, the entire workforce of the factory was not seized during the sweeps, though agents were placed by the doors. The agents’ presence at the exits was held to be nothing more than a measure to make sure that all workers were questioned, and “If mere questioning did not constitute a seizure when it occurred inside the factory, it was no more a seizure when it occurred at the exits.” Lastly, as there was no seizure of the workforce in its entirety, the respondents may only litigate what happened to them individually and, based on their testimonies, all of their interactions with agents were nothing more than “classic consensual encounters.” Dissenting Opinion The dissenting opinion, written by Justice Brennan and joined by Justice Marshall, calls the decision of the Court a “sleight of hand.” Brennan cited a number of preceding cases, including Terry v. Ohio and United States v. Mendenhall, drawing up a general