How DUI Blood and Breath Tests Can Affect Your Bakersfield Case

If you were arrested for DUI in Bakersfield, chances are a breath test, blood test, or both played a central role in the case against you. Many people assume these tests are infallible—but that assumption can be costly.

Understanding how DUI testing works, and where it can go wrong, is often key to protecting your rights.

Breath tests are not as reliable as they seem

Breathalyzer devices estimate blood alcohol concentration (BAC) indirectly. Their accuracy can be affected by:

• Improper calibration or maintenance

• Operator error

• Medical conditions such as acid reflux or diabetes

• Mouth alcohol from recent drinks, gum, or breath spray

In Bakersfield DUI cases, breath test results are frequently challenged, especially when procedures were rushed or improperly followed.

Blood tests raise different concerns

Blood tests are often viewed as more “scientific,” but they are far from immune to problems, including:

• Improper storage or fermentation of the sample

• Chain-of-custody errors

• Delays between driving and the blood draw

• Contamination or lab mistakes

Even small procedural errors can cast doubt on the results.

Timing matters more than most people realize

Alcohol absorbs into the bloodstream over time. This means:

• Your BAC at the time of testing may not reflect your BAC while driving

• Delays can artificially inflate test results

• Rising BAC defenses may apply depending on circumstances

This is especially relevant in Bakersfield, where testing may occur well after the initial traffic stop.

A high BAC does not automatically mean conviction

Test results are evidence, not proof. Prosecutors must still show:

• The test was administered correctly

• The results are reliable

• You were legally impaired while driving

A skilled DUI defense often focuses on the process, not just the number.

Why early legal help matters

The sooner a DUI lawyer reviews your case, the sooner they can:

• Examine testing procedures

• Request maintenance and calibration records

• Identify weaknesses before charges escalate

Waiting can mean losing valuable opportunities to challenge the evidence.

Speak with a Bakersfield DUI lawyer today

If your DUI arrest involved a breath or blood test, Martens Law Firm can help you understand your options and protect your future.

📞 Call (661) 336-9335 to schedule a free consultation.

Written by Martens Law Firm