It was an exciting day for an Arizona DoorDash delivery robot that wandered straight into the middle of a SWAT operation. Dot the robot was making a food delivery nearby when it rolled into the weapons-related incident, ignoring repeated commands from tactical officers to leave the secured perimeter.
Dot even got to witness officers detonating a flashbang (a type of non-lethal explosive also known as a stun grenade) before officers finally contacted DoorDash, prompting a DoorDash technician to arrive on scene and wrangle Dot onto a box truck for removal.
In a statement to The Independent, DoorDash stated: “Our robot behaved as designed — stopping and waiting safely while authorities managed the scene — and we’re grateful to the Chandler Police Department for their professionalism.”
The compact robot is designed to travel on roadways and bike lanes and can hit speeds up to 20 mph. If Dot gets confused en route or makes a mistake, DoorDash operators can respond to issues remotely. Local operators are available if tech issues need hands-on intervention.
A food delivery robot rolling into an active SWAT perimeter is certainly unusual, and not to mention inconvenient for whoever didn’t get their DoorDash order. But it also raises questions about whether an autonomous device—or the humans who control it—can “obstruct justice" under existing legal definitions.
Can a Robot Obstruct Justice?
Dot ignored law enforcement orders to leave the SWAT situation. If a human did this, they could be detained or charged with obstruction of justice, interference with law enforcement, or failure to obey a lawful order, depending on the circumstances. But a robot lacks criminal intent (mens rea), a key element of an obstruction of justice charge.
Under federal law, obstruction of justice covers almost any action that attempts to influence or interfere with a justice process, including obstructing a pending investigation. State laws also address obstruction of justice, with many states’ codes addressing acts that interfere with police work.
Arizona’s obstruction of justice statute defines the crime as “a person who knowingly attempts by means of bribery, misrepresentation, intimidation or force or threats of force to obstruct, delay or prevent the communication of information or testimony relating to a violation of any criminal statute.” It targets people who knowingly obstruct or interfere with an investigation or prosecution. So under Arizona law, it is unlikely that a device like Dot could obstruct justice.
But what if a human intentionally programmed or ordered Dot to interfere at the crime scene? In that case, that person could face obstruction of justice charges. The law would treat the device as a tool used to carry out their intent to obstruct the SWAT operation. Prosecutors don’t need to prove that the robot “knew” anything — only that the human did.
Police Authority To Disarm Robots and Drones
Law enforcement officers generally have broad authority to control or disable equipment that interferes with an investigation. Commercial robots aren’t exempt from that authority when they interfere with an investigation. In Dot’s situation, officers would have been within their legal authority to disable it to protect the integrity of their investigation. But it’s possible this SWAT team didn’t know how to safely shut down the machine in the moment or made the call to keep officers’ focus on getting the suspect out of the home.
So the Robot Is Off the Hook?
Likely, yes. But the humans or company responsible for deploying or programming the robot could be legally responsible for its actions. Civil law doctrines like vicarious liability or negligent supervision could apply.
Vicarious liability refers to when a party is held legally responsible for the wrongful or negligent actions of another party, even if they were not personally at fault. This is most often seen in workplace lawsuits but could also apply when a company’s autonomous robot interferes with law enforcement activity.
If Dot had injured someone during its crime-busting excursion, the operator or owners could be held responsible under negligent supervision. This civil concept applies when a party (usually an employer) fails to monitor another party under their care, and that failure directly causes harm to someone.
Delivery Robots and the Law: What’s Next?
As cities adopt more sidewalk‑level robots (small, wheeled robotic devices that navigate pedestrian walkways and often resemble coolers), courts will need to clarify how certain criminal and civil doctrines apply when the “offender” is just trying to deliver a Taco Bell order.
Dot isn’t the first (and won’t be the last) delivery device to interact with police or wander into a dangerous situation. This makes it essential for lawmakers to find the balance between embracing technology and prioritizing public safety.
