Be Ready...

When you calmly stand up and put some case law on the table (Case law refers to available writings explaining verdicts in various cases. It isn’t really law, but rather precedents set by other judges. Some Courts don’t publish this information, and thus do not have a large body of
case law, so be sure to check your specific state.) and begin to cross examine the officer, asking questions about the foundation of evidence the prosecutor doesn’t have, he has three choices:

1. Try to challenge existing case law.
2. Beg the judge to stop you.
3. Chalk one up in the loss column and move on.