The instructions for the I-129f say:
Item Number 4.a. Criminal Information. Indicate whether you have ever been arrested, cited, charged, indicted, convicted, fined, or imprisoned for breaking or violating any law or ordinance in any country, for any offenses other than those you have already outlined in the previous section. Unless a traffic incident was alcohol- or drug-related or involved a fine of $500 or more, you do not need to provide information on it.
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