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... This is done on USCIS Form I-918 Supplement B, U Nonimmigrant Status Certification. ... Unfortunately, it can be difficult to convince law enforcement to provide this. ... Form I-918, Supplement B should be sufficient for this, but if you have any further information about ... Evidence that the crime violated U.S. laws. ... Again, Form I-918, Supplement B should cover this, but if you have any additional information about the ...