MO HB1388

Requires government entities to obtain a search warrant or investigative subpoena from a court of competent jurisdiction to access location information of electronic devices, except in specific circumstances.

Allows government entities to obtain location information without a warrant in four situations: when the device is reported stolen, to respond to emergency service calls, with the owner's informed consent, or when a possible life-threatening situation exists.

Defines key terms including "electronic device," "location information," "government entity," "electronic communication service," and "location information service."

Makes evidence obtained in violation of these requirements inadmissible in civil, criminal, or administrative proceedings and prohibits its use in probable cause affidavits for search warrants.

Allows courts to issue disclosure orders when a government entity provides specific, articulable facts showing reasonable grounds to believe the location information is relevant and material to an ongoing criminal investigation.