Back in 2012, the US Supreme Court ruled that it's illegal for the police to attach a GPS tracking device to someone's car without a warrant. But what if you find a GPS tracking device on your car? Can you remove it? ARS TECHNICA This story originally appeared on Ars Technica, a trusted source for technology news, tech policy analysis, reviews, and more. Ars is owned by WIRED's parent company, Condé Nast.

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