I was pulled over this morning for (as the citation reads) driving 30mph in a school zone (speed limit 20). After the officer took down my information and handed me the citation I signed it and apologized. After he left the side of my car I looked at the clock on my dashboard and it read 7:12. I quickly looked at my phone and my wrist watch - 7:12 and 7:12. The ticket reads "time: 7:15". I was pulled over well before 7:15, the time at which the school zone speed limit goes into effect. I have requested a trial by judge. Does anybody know if the officer is required the have his dash cam running when he makes a traffic stop? If the dash cam footage is shown I would be instantly vindicated. I have no real hope of that happening, but wondered what the law was in Texas concerning when an officer must have his dash cam running.