This Law Firm Publication by Jackson Lewis P.C. discusses the approval of an amendment to the Missouri Constitution which makes Missouri the first state to provide explicit constitutional protection to electronic data and communications from unreasonable searches and seizures. On August 5, 2014, almost 75% of the voters approved the measure amending Section 15 of Article I of the state constitution to extend the same protections to electronic data and communications from searches and seizures as are given to persons, papers, homes and effects. Missouri's amendment follows the US Supreme Court's June 2014 decision which required law enforcement to obtain a warrant to search cell phones seized during an arrest.