A motion to suppress evidence filed in an arson case in Denver, Colorado, presents the first major legal challenge to reverse keyword warrants, a controversial surveillance technique that has been ...

Some experts like Szabo believe the legality of reverse keyword searches may eventually be answered by the US Supreme Court, but that’s likely years away if it ever happens.

"The constitutionality of reverse-keyword warrants presents an issue of first impression in Colorado. Indeed, to our knowledge, no state supreme court or federal appellate court has addressed the ...