How so...no complaining witness...no case. What am I missing?
That is true in some states, but not all. In those states where the pol;ice officer is not required to show up, the ticketed person can subpoena the officer and make him show up. If he then doesn't show up, the court will be required to dismiss the ticket.
I was cited for an improper lane change three years agon and the sheriff's deputy failed to include perjury language on his report and when I brought it to the atention of the judge, he dismissed the case. I know he intentionally did not sign it under penalty of perjury or show up because his boss did not want me to be able to question him under oath for a wide variety of reasons.