Although the AI-powered mass surveillance which Leonardo offers can be useful, it comes with some significant legal and ethical problems. The [[Fourth Amendment|Fourth Amendment to the US Constitution]] provides strong protections against "unreasonable searches and seizures," without a legal warrant, which clearly defines who is being subjected to a search, what place will be searched, and the duration of the search. It also needs to be signed by a judge. Based on legal precedent, tracking the movements of a person over time, is a form of a search, which therefore requires a specific and limited search warrant.<ref>https://supreme.justia.com/cases/federal/us/585/16-402/</ref><ref>https://supreme.justia.com/cases/federal/us/565/400/</ref>
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Surveillance systems also have a societal effect. It has been proven that law-abiding people, will still change their behaviors when they know they are being surveilled. This is not crime prevention, but rather a so-called "chilling affect." This influence is known to psychologists as the "Hawthorne effect."<ref>https://www.ebsco.com/research-starters/social-sciences-and-humanities/hawthorne-effect</ref><ref>https://www.simplypsychology.org/hawthorne-effect.html</ref>