Improving uncertainty in Widmark equation calculations: Alcohol volume, strength and density
| Autor: | R. Alex Speers, Dawn L. Maskell, Peter D. Maskell |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Ethanol
Alcoholic Beverages Monte Carlo method Uncertainty Central Nervous System Depressants 030508 substance abuse Alcohol Mathematical Concepts Product Labeling Weights and Measures Pathology and Forensic Medicine Back calculation Forensic Toxicology 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine chemistry Volume (thermodynamics) Research council Econometrics Humans Measurement uncertainty 030216 legal & forensic medicine 0305 other medical science Monte Carlo Method |
| Zdroj: | Science & Justice. 57:321-330 |
| ISSN: | 1355-0306 |
| DOI: | 10.1016/j.scijus.2017.05.006 |
| Popis: | The Widmark equation is probably the most commonly used calculation for medicolegal purposes. Recently the National Research Council (USA) and the Forensic Science Regulator (UK) have called for the uncertainty of all results to be given with all forensic measurements and calculations. To improve the uncertainty of measurement of results from Widmark calculations we have concentrated on the uncertainties of measurement involved in the calculation of amount of alcohol, that of the volume of alcohol, the concentration of alcohol and the density of alcohol as previous studies have investigated some of the other factors involved. Using experimental studies, the scientific literature and legal statutes, we have determined revised and improved uncertainties of the concentration of ethanol for Widmark calculations for both the USA and UK. Based on the calculations that we have performed we recommend the use of Monte Carlo Simulation for the determination of uncertainty of measurement for Widmark Calculations. |
| Databáze: | OpenAIRE |
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