title: [Study on time limit of ACP and sperm positive-detected in mixed spot].
abstract: OBJECTIVE
  The study was carried out on time limit of ACP and sperm positive-detected in mixed spot.
  
  
  METHODS
  600 vaginal swabs from living body after sexual intercourse were tested by routine and three-blindness methods.
  
  
  RESULTS
  The longest time limit of ACP which was positively detected is 255 h, average time limit is 52 h, 41.3% of those samples was ACP-detected in positive degree (++). The longest time limit of sperm positively detected is 132 h, average time limit is 29 h. The number of sperms observed in 34.3% of those samples with positive result, is from 6 to 10/HP.
  
  
  CONCLUSIONS
  This study is helpful to forensic identification of sex cases.
authors.affiliation: Jishou Public Security Bureau of Hunan Province, Jishou 416000.
authors.forename: J S
authors.initials: JS
authors.lastname: Yu
authors.forename: K L
authors.initials: KL
authors.lastname: Qin
authors.forename: K H
authors.initials: KH
authors.lastname: Guan
authors.forename: S Z
authors.initials: SZ
authors.lastname: Li
mesh_terms: D000135:Acid Phosphatase / Q000032:analysis*; D003075:Coitus; D005260:Female; D005554:Forensic Medicine; D006801:Humans; D008297:Male; D013094:Spermatozoa; D013997:Time Factors; D014626:Vaginal Smears
chemical_list: D000135:Acid Phosphatase