The recent decision of San Francisco law enforcement and mass transit authorities to shut down underground cell phone service at Bay Area Rapid Transit (BART) stations to deter organizers of a planned protest has induced several public interest groups to file an emergency petition for declaratory ruling with the FCC that condemns the action as a violation of the First Amendment and the 1934 Communications Act. Signed by Public Knowledge, the Center for Democracy and Technology, the Center for Media Justice, the Electronic Frontier Foundation, and the Media Access Project among others, the petition targets law enforcement actions in the wake of a planned August 11 protest that was to take place at BART stations throughout San Francisco in response to a recent police shooting at a BART facility. To prevent demonstrators from assembling outside of designated areas and to protect public safety, officials decided to shut down cell phone service temporarily at some underground BART stations during the protest. Although BART officials defended that action as lawful, the petitioners told the FCC that “unilateral action by law enforcement, however well intentioned, risks depriving the public of vital emergency communications at the worst possible moment.” Adding, “any impairment of [commercial mobile radio service] impacts both critical issues of public safety and important principles of free expression,” the petitioners urged the FCC to “act swiftly to clarify that local authorities may not turn off wireless networks before other local jurisdictions seek to replicate the actions of BART.” Maintaining that law enforcement entities are forbidden under the Communications Act from denying or suspending wireless and other communications services without the express consent of the FCC, state commissions, or the courts, the petitioners further advised the FCC: “it has been settled law for decades that law enforcement agencies have no authority to order discontinuation of phone service on mere suspicion of illegal activity without due process.”