The EFF followed a Baltimore case of government surveillance by airplane conducted in 2020 [1] and ruled on by the Fourth Circuit Court of Appeals in 2021 [2].

The EFF followed a Baltimore case of government surveillance by airplane conducted in 2020 [1] and ruled on by the Fourth Circuit Court of Appeals in 2021 [2]. According to the Fourth Circuit, the information that plane surveillance can gather about individuals is, with respect to privacy, comparable to cell site location information (CLSI), at issue in Carpenter v. United States (2018) [3]. Helicopters offer at least the surveillance capabilities that planes do. [1] https://www.eff.org/deeplinks/2021/03/officials-baltimore-and-st-louis-put-brakes-persistent-surveillance-systems-spy https://www.eff.org/deeplinks/2021/03/officials-baltimore-an... [2] https://www.eff.org/deeplinks/2021/07/victory-fourth-circuit-rules-baltimores-warrantless-aerial-surveillance-program https://www.eff.org/deeplinks/2021/07/victory-fourth-circuit... [3] https://en.wikipedia.org/wiki/Carpenter_v._United_States https://en.wikipedia.org/wiki/Carpenter_v._United_States