Breath Alcohol

Iowa Department of Public Safety Division of Criminal Investigation

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Statistics for Clarke County

Previous Six Months

Month	Year	Average Alcohol Level (g/210L)	Number of Tests
October	2024	0.138	6
September	2024	0.108	3
August	2024	0.221	5
July	2024	0.212	4
June	2024	0.128	3
May	2024	0.152	3
		Total:	24

Year to Date

Year	Average Alcohol Level (g/210L)	Number of Tests
2024	0.152	33
2023	0.160	27
2022	0.109	59
2021	0.155	52
2020	0.129	39
2019	0.132	45
2018	0.117	71
2017	0.112	84
2016	0.122	57
2015	0.139	73
2014	0.110	85
2013	0.130	93
2012	0.131	91
2011	0.125	76
2010	0.136	40

DataMaster CDM Historical Data *

Year	Average Alcohol Level (g/210L)	Number of Tests
2010	0.126	35
2009	0.127	93
2008	0.128	83
2007	0.121	76
2006	0.124	65
2005	0.151	51
2004	0.145	61
2003	0.144	59
2002	0.137	84
	Total:	607

* The DataMaster CDM in use in Iowa from 1999 until 2011 was capable of limited data collection. This section of the website allows users to view the approximate number of tests and the average alcohol concentration of the subject for each county from 2002–2010.

This data is limited to the DataMaster CDM only. Please note, that the data may not be complete. The DataMaster CDM was capable of only holding approximately 175 tests at a time and there were situations that the memory was full and would no longer store tests until it was downloaded. Also, data may have been lost, never stored or cleared from memory prior to a download taking place.

The statistical data includes several subject tests that may have been performed by officers as "practice" and suspects that may have been impaired by substances other than alcohol therefore resulting in a zero breath alcohol result. Eliminating any test that was below 0.010 g/210 L, the statewide average over the past decade has been around 0.147 g/210 L.

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