Canine olfactory sensitivity to cocaine hydrochloride and methyl benzoate

L. Paul Waggoner; James M. Johnston; Marc Williams; Jan Jackson; Meredith H. Jones; Teresa Boussom; James A. Petrousky

doi:10.1117/12.266775

17 February 1997 Canine olfactory sensitivity to cocaine hydrochloride and methyl benzoate

L. Paul Waggoner, James M. Johnston, Marc Williams, Jan Jackson, Meredith H. Jones, Teresa Boussom, James A. Petrousky

Proceedings Volume 2937, Chemistry- and Biology-Based Technologies for Contraband Detection; (1997) https://doi.org/10.1117/12.266775
Event: Enabling Technologies for Law Enforcement and Security, 1996, Boston, MA, United States

Abstract

Methyl benzoate is a consistent product of cocaine hydrochloride exposed to humid air. The detection responses of dogs trained to detect illicit cocaine hydrochloride may be controlled by vapor from cocaine, methyl benzoate, or other constituents of illicit cocaine. The present study addressed the following questions: 1) How capable are dogs of detecting methyl benzoate compared to cocaine hydrochloride, 2) When dogs are trained to detect methyl benzoate, do they respond to cocaine hydrochloride as being the same or different from methyl benzoate. These questions were investigated using random source dogs trained and tested under laboratory conditions. Odor stimuli were generated and delivered by a vapor generation systems, the outputs from which were characterized by thermal desorption GC/MS. ONe group of dogs was trained to discriminate pharmaceutical grade and illicit cocaine hydrochloride from clean air and tested using a two lever procedure to determine their sensitivity to these substances. A second group of dogs was trained to discriminate between methyl benzoate and clean air and tested for their sensitivity to the substance. The dogs in this second group were then tested using a three lever procedure to determine their sensitivity to these substances. A second group of dogs was trained to discriminate between methyl benzoate and clean air and tested for their sensitivity to the substance. The dogs in this second group were then tested using a three lever procedure to determine whether they responded to cocaine hydrochloride as the same or different from methyl benzoate.

Citation Download Citation

L. Paul Waggoner, James M. Johnston, Marc Williams, Jan Jackson, Meredith H. Jones, Teresa Boussom, and James A. Petrousky "Canine olfactory sensitivity to cocaine hydrochloride and methyl benzoate", Proc. SPIE 2937, Chemistry- and Biology-Based Technologies for Contraband Detection, (17 February 1997); https://doi.org/10.1117/12.266775

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