This checklist has been developed to assist police, prosecutors, judges, commissioners, magistrates and other U visa certifying officials in identifying the wide range of ways an immigrant crime victim can provide helpfulness to justice system officials and government agencies in detection, investigation, prosecution, conviction or sentencing of U visa listed criminal activity. The document includes citations to U.S. Department of Homeland Security policies, regulations, guidance and training materials on U visa certification and helpfulness. A national team of law enforcement, prosecutors and judicial trainers with expertise and experience on the U visa contributed to the development of the list of examples of helpfulness included in this document based on their experience and expertise.