Sergeant James Kuehnlein did have the right to pull 20 year old Brett Darrow over. He was well within his rights to ask for ID. Yet when the kid asked a few too many questions, Officer Kuehnlein went off on the kid.
Watch and listen to the video. Officer Kuehnlein threatened to make up charges, impound the kids car and send him to jail.
Sergeant James Kuehnlein is suppose to serve and protect. Not harass, and make the law up. It's ashame that he gives Missouri a bad name.