{"id":4204,"date":"2026-05-17T11:40:18","date_gmt":"2026-05-17T15:40:18","guid":{"rendered":"https:\/\/www.baronedefensefirm.com\/blog\/?p=4204"},"modified":"2026-05-17T11:48:10","modified_gmt":"2026-05-17T15:48:10","slug":"gas-chromatography-dui-blood-test","status":"publish","type":"post","link":"https:\/\/www.baronedefensefirm.com\/blog\/gas-chromatography-dui-blood-test\/","title":{"rendered":"Gas Chromatography DUI Blood Tests in Michigan: How the Raw Data Can Create a Defense"},"content":{"rendered":"
Gas chromatography is the laboratory method often used to measure alcohol in a Michigan DUI blood test. Although prosecutors may present the result as a precise scientific number, the real question is whether the underlying data supports that number. In many cases, the most important defense work begins not with the final lab report, but with the chromatograms, calibration records, quality-control data, and analyst decisions behind it.<\/p>\n
\n

Key point:<\/strong> A blood alcohol number is not self-proving. It is the final product of sample handling, instrument performance, laboratory protocols, and human interpretation.<\/p>\n<\/div>\n

What Is a Gas Chromatography DUI Blood Test?<\/h2>\n<\/article>\n
Continue Reading \u203a<\/a><\/div>\n","protected":false},"excerpt":{"rendered":"

Gas chromatography is the laboratory method often used to measure alcohol in a Michigan DUI blood test. Although prosecutors may present the result as a precise scientific number, the real question is whether the underlying data supports that number. In many cases, the most important defense work begins not with the final lab report, but […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14,10,11],"tags":[227,223,226,224,178,225],"class_list":["post-4204","post","type-post","status-publish","format-standard","hentry","category-blood-testing","category-dui-defense","category-dui-mistakes","tag-blood-alcohol-testing","tag-dui-blood-testing","tag-forensic-evidence","tag-gas-chromatography","tag-michigan-dui","tag-owi-defense"],"yoast_head":"\nGas Chromatography DUI Blood Test Defense<\/title>\n<meta name=\"description\" content=\"Gas chromatography DUI blood tests may be challenged through raw data, calibration records, chromatograms, and lab procedures.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link 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minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.baronedefensefirm.com\/blog\/gas-chromatography-dui-blood-test\/#article","isPartOf":{"@id":"https:\/\/www.baronedefensefirm.com\/blog\/gas-chromatography-dui-blood-test\/"},"author":{"name":"Patrick Barone","@id":"https:\/\/www.baronedefensefirm.com\/blog\/#\/schema\/person\/da00f897e195cfccca02fe556b53136f"},"headline":"Gas Chromatography DUI Blood Tests in Michigan: How the Raw Data Can Create a Defense","datePublished":"2026-05-17T15:40:18+00:00","dateModified":"2026-05-17T15:48:10+00:00","mainEntityOfPage":{"@id":"https:\/\/www.baronedefensefirm.com\/blog\/gas-chromatography-dui-blood-test\/"},"wordCount":2057,"image":{"@id":"https:\/\/www.baronedefensefirm.com\/blog\/gas-chromatography-dui-blood-test\/#primaryimage"},"thumbnailUrl":"https:\/\/www.baronedefensefirm.com\/blog\/wp-content\/uploads\/2026\/05\/GC-in-Lab-300x200.jpg","keywords":["Blood Alcohol Testing","DUI Blood 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