The police officer who fatally shot Philando Castile along a Minnesota road was acquitted of all charges last week, but newly released video of what happened that day has opened new debate over the case and how a seemingly routine traffic stop so abruptly turned deadly.

We asked experts in the law, police procedures and officer training to view the dashboard camera video of the encounter between Officer Jeronimo Yanez and Mr. Castile: an episode that lasted only seconds. They offered their takes on what they saw, frame by frame.

Here is some of what they said.

The Approach