My question involves criminal law for the state of: I got pulled over for tinted windows (back and rear windows are 5% and front windows are 35% which is more than the legal percentage in IA) as of result of that I got an OWI. The officer didnt check the percentage of the front windows and the fact that it was a night it made the windows seem really dark. I have court in a couple of weeks but I want to know if I can plead not guilty because the reason I got pulled over was not legitimate. I had the legal percentage of tint on my windows and the officer messed up because he didnt check. If I plead not guilty because of the officer's mistake, will the judge take the OWI away and give me back my license? What can I do??? this is my first OWI and I don't know what to do. Need help