Breath Alcohol

Iowa Department of Public Safety Division of Criminal Investigation

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Statistics for Montgomery County

Previous Six Months

Month	Year	Average Alcohol Level (g/210L)	Number of Tests
November	2024	0.081	1
September	2024	0.000	3
August	2024	0.000	1
July	2024	0.183	1
June	2024	0.125	4
May	2024	0.159	4
		Total:	14

Year to Date

Year	Average Alcohol Level (g/210L)	Number of Tests
2024	0.114	33
2023	0.129	43
2022	0.127	30
2021	0.140	32
2020	0.145	39
2019	0.128	33
2018	0.120	36
2017	0.133	30
2016	0.133	40
2015	0.101	41
2014	0.124	44
2013	0.138	63
2012	0.119	57
2011	0.131	55
2010	0.136	29

DataMaster CDM Historical Data *

Year	Average Alcohol Level (g/210L)	Number of Tests
2010	0.144	58
2009	0.128	59
2008	0.131	44
2007	0.137	65
2006	0.145	45
2005	0.155	64
2004	0.149	46
2003	0.170	30
2002	0.142	66
	Total:	477

* 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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