Which file includes records of individuals involved in serious violent crimes and deported aliens?

The Immigration Violators File is the correct choice because it specifically includes records of individuals who have committed serious violent crimes and are subject to deportation. This file is crucial for law enforcement agencies to track individuals who not only violate immigration laws but may also pose a threat to public safety due to their criminal backgrounds.

In the context of law enforcement and public safety, it is essential to maintain accurate records of such individuals to facilitate cooperation between agencies and enhance community safety. This file helps in the identification of deported aliens who have a history of serious violent crimes, allowing for better risk assessment and management.

The other options, while related to various aspects of law enforcement and public safety, do not focus specifically on serious violent crimes paired with immigration violations. The Protection Order File primarily deals with individuals subject to protection orders, the Supervised Release File tracks individuals under supervision, and the National Sex Offender Registry is focused specifically on those who have been convicted of sex offenses. None of these directly connect to the tracking of deported aliens involved in serious violent crimes as effectively as the Immigration Violators File does.