The Michigan State Police have started using handheld machines called “extraction devices” to download personal information from motorists they pull over, even if they’re not suspected of any crime. Naturally, the ACLU has a problem with this.

The devices, sold by a company called Cellebrite, can download text messages, photos, video, and even GPS data from most brands of cell phones. The handheld machines have various interfaces to work with different models and can even bypass security passwords and access some information.

The problem as the ACLU sees it, is that accessing a citizen’s private phone information when there’s no probable cause creates a violation of the Constitution’s 4th Amendment, which protects us against unreasonable searches and seizures.