Radio Frequency Interference messages during breath testing of suspected impaired drivers using the Intoxilyzer® 5000C: A 13-year retrospective analysis*
| Autor: | Carlo Savoia, Karen L. Woodall, Jean-Paul F.P. Palmentier |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
medicine.medical_specialty
business.product_category Accident prevention business.industry Incidence (epidemiology) Poison control Breath alcohol Audiology Computer security computer.software_genre Electromagnetic interference Pathology and Forensic Medicine Breath testing medicine Retrospective analysis business computer Breathalyzer |
| Zdroj: | Canadian Society of Forensic Science Journal. 49:127-137 |
| ISSN: | 2332-1660 0008-5030 |
| DOI: | 10.1080/00085030.2016.1184839 |
| Popis: | Retrospective analysis of the incidence of Radio Frequency Interference (RFI) exception messages obtained during testing of suspected impaired drivers on the Intoxilyzer® 5000C over a 13-year period (1997 to 2009) was examined in order to address concerns on the hypothetical impact of RFI on breath alcohol testing. RFI messages were rare, occurring in less than 0.48% (n = 128) of the 26,939 drivers tested. Multiple RFI messages were even more infrequent, occurring in only 10.2% of RFI-positive cases (n = 13). There was no significant effect of the incidence of RFI messages attributable to a particular testing location (p = 0.98), a specific instrument (p = 0.98), or year of testing (p = 0.99). In addition, the data show no evidence that hypothetical “undetected” RFI events, in addition to those already detected by the instrument, affected either the calibration check results or the subject breath tests in this study. Instruments are designed with an RFI detection system and shielding to protect th... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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