Evaluation of Links in Heroin Seizures

Forensic Sci Int. 2003 Jan 28;131(2-3):171-83. doi: 10.1016/s0379-0738(02)00432-2.


The evaluation of a link between two heroin seizures using a descriptive method is presented. It is based on the measure of the angles between two chromatograms assimilated to vectors, and interpreted using a continuous approach based on the likelihood ratio of Bayes' theorem. A complete evaluation model thus avoids the drawbacks of decision thresholds used until now to establish a link. Validation is obtained through tests and simulation methods.

MeSH terms

  • Forensic Medicine / statistics & numerical data*
  • Heroin / adverse effects*
  • Humans
  • Likelihood Functions
  • Models, Statistical
  • Narcotics / adverse effects*
  • Reproducibility of Results
  • Seizures / chemically induced*
  • Statistics as Topic / methods*


  • Narcotics
  • Heroin