Yeah the "C and I" driver term was a new one for me to catch on to when I started monitoring the Missouri State Patrol and other Missouri agencies. Wasn't a term I had ever heard before. That and the non-standard 10-codes are really difficult to get use to hearing.
lol well, relatively. When I first started listening to Missouri and heard officers going out on a 10-16 and realized it wasn't a domestic dispute and when I heard one mention a himself and 10-10 and no one seemed too excited I knew something was up. I looked up the Missouri 10 codes and learned they were different that the standard APCO ones used by Iowa or I believe Illinois.