Spot uses AI trained on 1,200 photos to identify graffiti sprayers while patrolling stationary trains on its own at night.

The team’s system uses Boston Dynamics‘ Spot Mini quadruped robot with a Unitree Z1 manipulator arm. The arm can carry up to 3.2 pounds (2 kilograms) and is powered by Spot’s internal battery.

Police say the new four-legged robot can scale difficult terrain and will assist during some of their most challenging calls.

The Port of Portland Police Department and the Portland Police Bureau unveiled a new robot dog on Thursday that will be deployed for “dangerous tactical incidents.” ...