28 CFR 551.151: Definitions.

(a) For purpose of this rule, victim is generally defined as someone who suffers direct or threatened physical, emotional, or financial harm as the result of the commission of a crime. The term “victim” also includes the immediate family of a minor or a homicide victim.

(b) For purpose of this rule, witness is defined as someone who has information or evidence concerning a crime, and provides information regarding this knowledge to a law enforcement agency. Where the witness is a minor, the term “witness” includes an appropriate family member. The term “witness” does not include defense witnesses or those individuals involved in the crime as a perpetrator or accomplice.

(c) For purpose of this rule, serious crime is defined as a criminal offense that involves personal violence, attempted or threatened personal violence or significant property loss.

(d) For purpose of this rule, the phrase release from a Bureau institution refers to an inmate's furlough, parole (including appearance before the Parole Commission), transfer to a State or local detention facility, transfer to a community corrections center, mandatory release, expiration of sentence, escape (including apprehension), death, and other such release-related information.