Reporting back ...
I reviewed the Ride Along training for Explorer advisors on my.scouting over the weekend. It is about 25 minutes. In this video two scenarios were presented. One with a law enforcement officer and one with an EMT.
According to this training module, youth Explorers are permitted to ride along, one-on-one, with an adult from the agency. The ride along must be done with an adult who is approved by the agency to serve as a mentor (or I would call them a field training officer) specifically to mentor Explorers.
I plan to recommend to our Post's sponsoring organizat