Hawaii Unnamed Witness Identification (UPI) is a state-run program that helps to identify anonymous crime witnesses. It is designed to protect the identity of witnesses who are not willing to be identified in a criminal investigation. The program uses confidential databases to match anonymous witnesses with individuals in the criminal justice system. There are two types of Hawaii Unnamed Witness Identification: the Name-Based UPI and the Fingerprint-Based UPI. The Name-Based UPI is a database of anonymous witnesses who have provided information to law enforcement. This information is used to match an anonymous witness with an individual in the criminal justice system. The Fingerprint-Based UPI is a database that uses fingerprint analysis to match a witness with an individual in the criminal justice system. Both of these programs are used to protect the anonymity of witnesses and to provide valuable evidence to law enforcement.