A federal judge has ruled that police officers in Wisconsin did not violate the Fourth Amendment when they secretly installed cameras on private property without judicial approval.

The officers installed the cameras in an open field where they suspected the defendants, Manuel Mendoza and Marco Magana, were growing marijuana. The police eventually obtained a search warrant, but not until after some potentially incriminating images were captured by the cameras. The defendants have asked the judge to suppress all images collected prior to the issuance of the search warrant.