BOSTON — Members of the Legislature’s Joint Committee on Judiciary will hear testimony Tuesday on a proposed bill filed by Dracut Rep. Colleen Garry that would make protesting on highways a felony.

Garry filed the legislation after protesters aligned with the Black Lives Matter movement secured their arms in concrete barrels on Jan. 15 and chained themselves together across I-93 southbound just outside of Boston.

Authorities said the demonstration prevented ambulances from reaching Boston hospitals and backed up rush hour traffic for a mile.

“I’m just outraged that people would be that reckless with the lives of others,” Garry said in a July 8 statement. “Everyone has a right to protest, but to do that kind of thing in a highway or a roadway? It put the public’s safety at risk.”

In total, police arrested 29 people between the Boston protest and a similar demonstration on the highway near Milton. They were charged with disorderly conduct, resisting arrest, trespassing, and conspiracy, among various other individual charges.

Garry’s bill would amend attempted murder and manslaughter statutes to include “purposefully causing harm to an individual or killing an individual by blocking access to and/or a public highway or roadway.”

Anyone interested in testifying about the proposed legislation can attend the committee’s hearing at 1 p.m. Tuesday, in room A-2 of the State House.