If you are sure there were no actions that could be taken as battery, explain to the prosecutor and judge well. If you can find the video recording that can help a lot. See if you can get any witness. It's a matter of fact that some police do exaggerate and lie in the police report. Get your police report and read it carefully.
No matter what, find a good criminal attorney. Also monitor the work of your attorney. Don't totally rely on him, do you homework too. Write everything down, present your material whenever needed. At the same time, consult an immigration attorney before accepting any disposition. The best is to drop. Otherwise the base line is any deal absolutely can't have a max possible jail time of more than 1 year and the actual sentence can't be more than 6 month in jail. But I don't think any jail time will apply at all for this kind of situation.
What will happen is that first you go to arraignment, where your charge is announced. If you plea not guilty, a court date will be set for you, on which date you go for trial.
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