Historique
Article de Périodique
Illicit drug profiling, reflection on statistical comparisons (2011)
Auteur(s) :
ESSEIVA, P. ;
GASTE, L. ;
ALVAREZ, D. ;
ANGLADA, F.
Année :
2011
Page(s) :
27-34
Langue(s) :
Anglais
Refs biblio. :
16
Domaine :
Drogues illicites / Illicit drugs
Discipline :
PRO (Produits, mode d'action, méthode de dépistage / Substances, action mode, screening methods)
Thésaurus mots-clés
DEPISTAGE
;
PRODUIT ILLICITE
;
METHODE
;
HEROINE
;
COCAINE
;
MODELE STATISTIQUE
;
ANALYSE CHIMIQUE
Note générale :
Note de police scientifique dans la Revue internationale de criminologie et de police technique et scientifique 2011;(64)2:247.
Résumé :
This paper presents reflexions about statistical considerations on illicit drug profiling and more specifically about the calculation of threshold for determining of the seizure are linked or not. The specific case of heroin and cocaine profiling is presented with the necessary details on the target profiling variables (major alkaloids) selected and the analytical method used. Statistical approach to compare illicit drug seizures is also presented with the introduction of different scenarios dealing with different data pre-treatment or transformation of variables.
The main aim consists to demonstrate the influence of data pre-treatment on the statistical outputs. A thorough study of the evolution of the true positive rate (TP) and the false positive rate (FP) in heroin and cocaine comparison is then proposed to investigate this specific topic and to demonstrate that there is no universal approach available and that the calculations have to be revaluate for each new specific application.
The main aim consists to demonstrate the influence of data pre-treatment on the statistical outputs. A thorough study of the evolution of the true positive rate (TP) and the false positive rate (FP) in heroin and cocaine comparison is then proposed to investigate this specific topic and to demonstrate that there is no universal approach available and that the calculations have to be revaluate for each new specific application.
Affiliation :
Institut de Police Scientifique, University of Lausanne, Bâtiment de Chimie, CH-1015 Lausanne-Dorigny, Switzerland