A check of Indiana law I.C. 9-19-10-3.1 shows that as of July 1, 2007 the seatbelt law became a primary offence. So an Officer may stop a vehicle and issue a citation for this offense alone. After noticing you have not said anything about having your seatbelt on my guess is that you are guilty as charged. My advise for what it is worth would be pay the ticket and go on with your life. One of the first things my dad taught me was when your wrong take responsibility and learn from it. As for why all the officers I haven’t a clue.