The clerk's office has a copy of your ticket, so no, your case won't be thrown out because they couldn't find the file on your first court appearance. The judge sets the conditions of probation, so the judge is responsible to tell you what you must or must not do while you are on probation. Whether having a drink one time that you told the doctor who evaluated you constitutes a probation violation will be determined by the judge. Obviously, if you didn't know you couldn't drink you should definitely tell the judge you didn't know what the conditions of probation were.
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