A bill for an act establishing procedures and requirements for reverse-location information searches by law enforcement or any governmental entity.

This Iowa bill (HSB 743) establishes new rules for law enforcement to obtain "reverse-location information" - historical location data from multiple electronic devices within a specific geographic area (a "geofence") during a crime investigation. It requires law enforcement to obtain a judicially approved warrant for such searches, only when investigating violent felonies with an imminent public safety threat, and mandates that all collected device data be anonymized before release. The bill also requires detailed warrant applications including maps of the geofence, clear notices about the broad data collection, and evidence of probable cause. These provisions directly affect law enforcement practices and protect the privacy of individuals whose devices may be incidentally captured in such searches.