Maryland House Passes Bill to Ban Warrantless Stingray Spying, Hinder Federal Surveillance Program

ANNAPOLIS, Md. (March 15, 2018) – Yesterday, the Maryland House passed a bill that would ban the use of “stingrays” to track the location of phones without a court order and prohibit police from sweeping up electronic communications. Passage of the bill would not only protect privacy in Maryland, it would also hinder one aspect of the federal surveillance state.

Del.Charles E. Sydnor (D-Baltimore), along with 14 other Democrat delegates, introduced House Bill 314 (HB314) on Jan. 22. The legislation would help block the use of cell site simulators, known as “stingrays.” These devices essentially spoof cell phone towers, tricking any device within range into connecting to the stingray instead of the tower. This allows law enforcement to sweep up communications content, as well as locate and track the person in possession of a specific phone or other electronic device.

HB314 adds provisions to existing Maryland statutes limiting warrantless location tracking through electronic devices to address the use of cell-site simulators. Under the proposed law, police would be required to get a court order based on probable cause before deploying a stingray device. The proposed law would bar police from using a stingray to obtain communication content and spells out explicit criteria law enforcement must meet in order to justify such an order.

HB314 includes limitations on the use of stingrays even with a court order. These restrictions would require police to restrict the investigative use of any third–party or non-target data without a further court order. The proposed law would require the deletion of any incidentally gathered information on persons not named in the court order within 10 days.

Information gathered in violation of the law would not be admissible in civil, criminal or administrative proceedings. Information gathered on non-targeted devices would not be admissible in court under any circumstances. HB314 would also make any evidence derived from evidence collected in violation of the law inadmissible in court.

The House passed HB314 by a 102-35 vote.


The federal government funds the vast majority of state and local stingray programs, attaching one important condition. The feds require agencies acquiring the technology to sign non-disclosure agreements. This throws a giant shroud over the program, even preventing judges, prosecutors and defense attorneys from getting information about the use of stingrays in court. The feds actually instruct prosecutors to withdraw evidence if judges or legislators press for information. As the Baltimore Sun reported in April 2015, a Baltimore detective refused to answer questions on the stand during a trial, citing a federal non-disclosure agreement.

Defense attorney Joshua Insley asked Cabreja about the agreement.

“Does this document instruct you to withhold evidence from the state’s attorney and Circuit Court, even upon court order to produce?” he asked.

“Yes,” Cabreja said.

As put it, “The FBI would rather police officers and prosecutors let ‘criminals’ go than face a possible scenario where a defendant brings a Fourth Amendment challenge to warrantless stingray spying.”

The experience of a Pinellas County, Florida, man further highlights the shroud of secrecy around the use of stingray devices, along with the potential for abuse of power inherent in America’s law enforcement community.

The feds sell the technology in the name of “anti-terrorism” efforts. With non-disclosure agreements in place, most police departments refuse to release any information on the use of stingrays. But information obtained from the Tacoma Police Department revealed that it uses the technology primarily for routine criminal investigations.

Some privacy advocates argue that stingray use can never happen within the parameters of the Fourth Amendment because the technology necessarily connects to every electronic device within range, not just the one held by the target. And the information collected by these devices undoubtedly ends up in federal databases.

The feds can share and tap into vast amounts of information gathered at the state and local level through a system known as the “information sharing environment” or ISE. In other words, stingrays create the potential for the federal government to track the movement of millions of Americans with no warrant, no probable cause, and without the people even knowing it.

According to its website, the ISE “provides analysts, operators, and investigators with information needed to enhance national security. These analysts, operators, and investigators…have mission needs to collaborate and share information with each other and with private sector partners and our foreign allies.” In other words, ISE serves as a conduit for the sharing of information gathered without a warrant.

The federal government encourages and funds stingrays at the state and local level across the U.S., thereby undoubtedly gaining access to a massive data pool on Americans without having to expend the resources to collect the information itself. By placing restrictions on stingray use, state and local governments limit the data available that the feds can access.

In a nutshell, without state and local cooperation, the feds have a much more difficult time gathering information. Passage of HB314 would strike a major blow to the surveillance state and would be a win for privacy.


HB314 will now move to the Senate for further consideration. The bill was referred to the Senate Judicial Proceedings Committee where it must pass by a majority vote before moving forward in the legislative process.

About Tenth Amendment Center
The Tenth Amendment Center is a national think tank that works to preserve and protect the principles of strictly limited government through information, education, and activism. The center serves as a forum for the study and exploration of state and individual sovereignty issues, focusing primarily on the decentralization of federal government power as required by the Constitution. For more information visit the Tenth Amendment Center Blog.

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