Breath Alcohol

Iowa Department of Public Safety Division of Criminal Investigation

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Statistics for Cass County

Previous Six Months

Month	Year	Average Alcohol Level (g/210L)	Number of Tests
November	2024	0.133	6
October	2024	0.138	4
September	2024	0.137	9
August	2024	0.168	4
July	2024	0.149	1
June	2024	0.057	3
		Total:	27

Year to Date

Year	Average Alcohol Level (g/210L)	Number of Tests
2024	0.132	56
2023	0.159	48
2022	0.142	76
2021	0.152	61
2020	0.141	69
2019	0.149	52
2018	0.124	69
2017	0.129	58
2016	0.124	74
2015	0.139	59
2014	0.118	96
2013	0.131	85
2012	0.136	92
2011	0.133	102
2010	0.124	62

DataMaster CDM Historical Data *

Year	Average Alcohol Level (g/210L)	Number of Tests
2010	0.141	42
2009	0.134	84
2008	0.129	61
2007	0.133	108
2006	0.138	107
2005	0.137	71
2004	0.132	77
2003	0.152	88
2002	0.133	31
	Total:	669

* 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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