461 U.S. 95 (1983)
Los Angeles v. Lyons is a landmark Supreme Court case that profoundly impacted the doctrine of standing, especially in cases seeking injunctions for preventive relief.
Can a plaintiff establish standing to seek injunctive relief against police chokeholds based on a single past incident without demonstrating a likelihood of facing the same treatment again?
For a plaintiff to have standing to seek injunctive relief, they must show a real and immediate threat of future injury due to the defendant's conduct, not merely a speculative or hypothetical possibility.
The Supreme Court held that Lyons did not have standing to seek an injunction against the city's use of chokeholds. The Court found that Lyons could not demonstrate a real and immediate threat that such an injury would occur again in the future.
Lyons is significant for law students as it defines the contours of standing in preventive-relief cases, focusing on the necessity of a concrete and imminent threat of future harm. This case is seminal in teaching the importance of the injury-redressability-causation triad that forms the basis of standing doctrine. Moreover, it cautions against the expansion of federal jurisdiction in monitoring the compliance of local governmental practices unless there is a clear demonstration of threat specific to the plaintiff.