A<unk>  is a package of items used by medical personnel for gathering and preserving physical evidence following an allegation of sexual assault. The evidence collected from the victim can aid the criminal<unk>  investigation and the prosecution of a suspected assailant. DNA evidence can have tremendous utility for sexual assault investigations and prosecution by identifying offenders, revealing serial offenders through DNA matches across cases, and exonerating those who have been wrongly accused. The<unk>  was developed in Chicago in the mid 1970s, in order to provide a more uniform protocol for evidence collection after sexual assaults. While Louis R. Vitullo is frequently credited as the developer of the first<unk> , it was originally researched and proposed to Vitullo by Martha 'Marty' Goddard, who was a victim advocate and founder of Chicago's Citizens for Victims Assistance organization, and herself a sexual assault survivor. For years, the standardized tool was referred to as a Vitullo<unk> . Today it is colloquially referred to as a<unk>  test<unk>  or a<unk> , which is used interchangeably to refer to the specific evidence that is obtained through the use of the<unk> . Other terms and abbreviations used are sexual assault<unk>  (SAK), a sexual assault forensic evidence<unk>  (SAFE), sexual assault evidence collection<unk>  (SAECK), sexual offense evidence collection<unk>  (SOEC) and physical evidence recovery<unk>  (PERK).
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