DWI with BAC Over 0.15 in Montgomery County
A DWI charge is serious at any alcohol level. But in Texas, a reported BAC of 0.15 or higher can make the case more serious. A first-time DWI that might otherwise be a Class B misdemeanor can become a Class A misdemeanor when a breath, blood, or urine test shows an alcohol concentration of 0.15 or more at the time the test was performed.
That difference matters. A Class A misdemeanor carries a higher punishment range, can affect plea options, may lead to tougher bond conditions, and can make prosecutors treat the case more aggressively.
If you were arrested for DWI in Montgomery County and the State claims your BAC was over 0.15, the number should not be accepted without review. The defense should examine the stop, arrest, test timing, breath or blood procedure, lab records, and video evidence.
For the full DWI overview, read the Complete Guide to DWI Defense in Montgomery County.
What Does BAC Over 0.15 Mean?
BAC means blood alcohol concentration. In Texas DWI cases, alcohol concentration can be measured through breath, blood, or urine. A person can be charged with DWI if the State claims they were intoxicated while operating a motor vehicle in a public place.
Texas law treats a reported alcohol concentration of 0.15 or more as an aggravating fact in a DWI case. If the test result reaches that level, the offense can be filed as a Class A misdemeanor.
This does not mean the State automatically wins. The State still has to prove the case, and the defense can still challenge the evidence.
Why a 0.15 DWI Is More Serious
A standard first-time DWI is often a Class B misdemeanor. A DWI with BAC of 0.15 or higher can be a Class A misdemeanor. That can increase the possible jail range and may affect negotiations.
It can also affect practical parts of the case, including:
Bond conditions
Alcohol monitoring
Ignition interlock
Plea offers
Probation terms
Driver’s license consequences
Insurance problems
Employment or licensing concerns
Because the stakes are higher, the evidence needs careful review.
Common Bond Conditions in High-BAC DWI Cases
In Montgomery County, bond conditions can be stricter when alcohol is a major issue. A judge may order no alcohol, random testing, a portable alcohol monitor, ignition interlock, or other supervision terms.
These conditions apply while the case is pending. Violating them can lead to bond problems, a warrant, jail, or stricter conditions.
For more about release rules, read Bail Conditions in Montgomery County: What You Must Know.
Breath Test Issues in a 0.15 Case
If the 0.15 result came from a breath test, the defense should review the machine records, operator certification, test sequence, observation period, and maintenance history.
Questions may include:
Was the breath machine certified?
Was the operator certified?
Was the observation period followed?
Were the two breath samples close enough?
Was there mouth alcohol, reflux, burping, or vomiting?
Did the person have medical conditions that affected the test?
Did the result match the video?
A high breath result can be challenged if the process was not reliable.
Blood Test Issues in a 0.15 Case
If the result came from blood, the defense should review the draw, storage, transport, chain of custody, lab testing, and reporting.
Important questions include:
Who drew the blood?
Was the blood draw lawful?
Was there a valid warrant if the person refused?
Was the kit sealed and labeled correctly?
Were the tubes properly handled?
Was the sample stored correctly?
How long did testing take?
Did the lab follow its own procedures?
Were the results reviewed properly?
For more on chemical testing, read Breath Test vs. Blood Test in Texas DWI Cases.
The Timing of the Test Matters
A test result is usually taken after the traffic stop, not at the exact moment of driving. Sometimes the test happens an hour or more after driving. That timing can matter.
Alcohol concentration changes over time. It can rise, peak, and fall depending on when the person drank, what they ate, body size, metabolism, and other factors. In some cases, the defense may argue that the person’s BAC was lower at the time of driving than it was at the time of testing.
This is especially important when the result is close to 0.15. A result of 0.151 may need careful review of testing uncertainty, timing, and lab procedures.
Does a 0.15 BAC Mean You Were Impaired?
The State may argue that a high number proves impairment. But the defense should still compare the number with the video and officer observations.
Did the person drive normally? Did they speak clearly? Did they follow instructions? Did they walk steadily? Did the officer exaggerate the field sobriety tests? Did the report match the body camera video?
For more about roadside testing, read Field Sobriety Tests in Texas DWI Defense.
Can a 0.15 DWI Be Reduced?
Sometimes a high-BAC DWI can be reduced or resolved in a way that limits damage. Sometimes it cannot. It depends on the evidence, the prosecutor, the court, the person’s record, and the strength of the defense challenges.
A reduction may be more possible if the test result has weaknesses, the stop is questionable, the video is favorable, the timing is uncertain, or the person has strong mitigation.
For first-time DWI information, read First-Time DWI in Montgomery County.
What Should You Do After a High-BAC DWI Arrest?
Do not assume the case is over because of the number. Also do not ignore the risk. A 0.15 DWI needs fast action.
Important steps include:
Protect the ALR license deadline
Save all paperwork
Follow every bond condition
Do not drink alcohol if restricted
Write down the timeline while it is fresh
Identify witnesses who saw you before driving
Preserve receipts, ride records, or location data if helpful
Have a lawyer review the breath or blood evidence
For license issues, read Texas DWI ALR Hearings: The 15-Day Deadline You Cannot Miss.
Talk to a Montgomery County DWI Lawyer
A DWI with BAC over 0.15 should be taken seriously, but the evidence still has to be tested. The defense should review the stop, arrest, video, test timing, lab work, and legal issues before any plea decision is made.
If you were arrested in Conroe, The Woodlands, Magnolia, Willis, or anywhere in Montgomery County, contact the Law Office of Timothy Rose or visit the firm’s DWI defense page.
Disclaimer: This article provides general information about Texas DWI law. It is not legal advice and does not create an attorney-client relationship.