According to NCVS

According to NCVS, 65% of all hate crime victimizations are never reported to the police. Many of the reasons stem from mistrust of law enforcement to: investigate their claim thoroughly, prosecute the case as a hate crime, prevent retaliation, and not use their position to deport victims who lack legal immigrant status. Moreover, as there is no federal mandate to ensure recording of hate crimes by local law enforcement jurisdictions, reporting is voluntary. As a result of the combination of voluntary reporting with a failure to adequately train police officers to identify bias indicators in crime, there is little chance that the scope of violence directed at vulnerable communities will be understood. Ultimately, the culture of a police department can be a strong determinant on whether hate crimes documentation is seen by police officers as necessary to protect vulnerable communities or functions to support the “agendas of gay and minority groups.”