By Ben Derico & James Clayton
BBC News, San Francisco
San Francisco's ruling Board of Supervisors has voted to fto the city's constabulary usage robots that tin kill.
The measurement permits constabulary to deploy robots equipped with explosives successful utmost circumstances.
Dr Catherine Connolly, from the radical Stop Killer Robots, said the determination was a "slippery slope" that could region humans from killing.
The city's constabulary - the SFPD - told the BBC they bash not presently run immoderate robots equipped with lethal force.
They said though that determination whitethorn beryllium aboriginal scenarios successful which lethal unit could beryllium utilized by a robot.
A spokesperson for the constabulary said "robots could perchance beryllium equipped with explosive charges to breach fortified structures containing violent, armed, oregon unsafe subjects".
They besides said robots could beryllium utilized to "incapacitate, oregon disorient violent, armed, oregon unsafe suspects who airs a hazard of nonaccomplishment of life".
Advocates for the measurement said it would lone beryllium utilized successful utmost situations.
Opponents, however, accidental the authorization could pb to further militarisation of the constabulary force.
The measurement passed, with an amendment connected Tuesday specifying that officers could lone usage robots wielding deadly unit aft employing alternate de-escalation tactics.
The committee besides stipulated that lone a constricted fig of high-ranking officers could authorise its use.
This benignant of lethal robot is already successful usage successful different parts of the United States.
In 2016, constabulary successful Dallas, Texas, used a robot equipped with C-4 explosive to termination a sniper who had killed 2 officers and injured respective more.
The SFPD said the section does not presently ain immoderate robots outfitted with lethal force, but said the measurement mightiness beryllium needed successful the future.
"No argumentation tin expect each conceivable concern oregon exceptional condition which officers whitethorn face. The SFPD indispensable beryllium prepared, and person the ability, to respond proportionally," a spokesperson said.
The national authorities has agelong dispensed subject people equipment, camouflage uniforms, bayonets and armoured vehicles to assistance section instrumentality enforcement.
But a California authorities instrumentality passed this twelvemonth present requires metropolis constabulary forces to inventory military-grade instrumentality and question support for their use.
Dr Catherine Connolly, from the run radical Stop Killer Robots, said the determination could "make humans much and much distant from the usage of unit and the consequences of the usage of force".
She besides said the measurement could marque it "easier to marque decisions to usage lethal unit successful the archetypal place".