The bill amends Chapter 140 of the General Laws by adding a new section, 131Z, which establishes regulations regarding the use of robotic devices equipped with weapons. It makes it unlawful for any individual to manufacture, sell, or operate such devices, imposing severe penalties for violations, including mandatory prison sentences ranging from 2 to 15 years for repeat offenders. The bill also prohibits the use of robotic devices to threaten, harass, or physically restrain individuals, with corresponding penalties for these offenses. Exceptions to these prohibitions are outlined for certain entities, including the U.S. Department of Defense and law enforcement agencies under specific circumstances.

Additionally, the bill requires law enforcement agencies to obtain a warrant before deploying robotic devices in certain situations and mandates documentation of their use, which must be reported quarterly to the executive office of public safety and security. The bill allows individuals to bring civil actions for violations and entitles successful plaintiffs to recover attorney fees. The attorney general is tasked with creating regulations for waivers related to the use of robotic devices, while the secretary of the executive office of public safety is responsible for establishing rules regarding their permitted uses by law enforcement.