Steven:  It would be nice to be able to assume officers are telling the truth.  However, I truly don't believe we can make that assumption.  I've long been a supporter of "body cams" to take the "he/she said, he/she said" element out of police-citizen confrontation issues.  As you suggest, such measures would really do two things.....a) provide verifiable evidence of the exchange and b) positively impact the behaviors of both citizens and officers.  regards, Gary Crum