Empirical Approach to Estimating the Probability of Innocently Acquiring Bloodstains of Different ABO Groups on Clothing

• NCJ Number: 94747
• Journal: Journal of Forensic Science Society Volume: 24 Issue: 3 Dated: (May/June 1984) Pages: 221-227
• Author(s): G Gettinby
• Date Published: 1984
• Length: 7 pages
• Publication Format: Article
• Publication Type: Statistics
• Language: English
• Country: United Kingdom

Annotation

For offences against the person, the term 'coincidence factor' is defined as the probability of a suspect innocently possessing a bloodstain, the groups of which are consistent with the blood having come from the victim.

Abstract

Using population data for ABO blood groups, and survey data for bloodstains on clothing, an expression is derived to allow calculation and interpretation of coincidence factors. (Publisher abstract)