title: Penetration and ejaculation; forensic aspects of rape.
abstract: A study was made of 104 alleged rape cases submitted to the DSIR in Auckland by the police over a period of approximately two years. Data were collected relating to the victims' perceptions of penetration and ejaculation, and the forensic evidence for these events. Seminal fluid was detected in 69 (66%) of the cases. In 81 (78%) of the cases penetration was reported; seminal fluid was detected in 58 of these. Of the five (5%) cases where it was reported that penetration did not occur, seminal fluid was detected in two. Forty (38%) of the victims reported ejaculation and seminal fluid was detected by 34 of these. Ejaculation was reported not to have occurred in 16 (15%) of the cases; seminal fluid was detected in seven of these. The victims of alleged sexual assault may not remember accurately if penetration or ejaculation took place.
authors.affiliation: Criminalistics and Forensic Biology Section, DSIR Chemistry, Auckland.
authors.forename: S M
authors.initials: SM
authors.lastname: Hook
authors.forename: D A
authors.initials: DA
authors.lastname: Elliot
authors.forename: S A
authors.initials: SA
authors.lastname: Harbison
mesh_terms: D004542:Ejaculation; D005260:Female; D005554:Forensic Medicine; D006801:Humans; D008297:Male; D011902:Rape / Q000175:diagnosis*; D012661:Semen / Q000737:chemistry