NOT GUILTY: The Commonwealth’s Key Exhibit Was a Full Bottle

A Massachusetts OUI trial turned on a single question on cross-examination — how much liquid was left in the bottle.

August 12, 2026 | OUI Defense | Attorney Michael P. Murray

The Result

In Commonwealth of Massachusetts v. Defendant, Docket No. 2648 CR 0211, my client was found NOT GUILTY of Operating a Motor Vehicle While Under the Influence of Alcohol. This was a judgement after trial — the case was tried, the Commonwealth put on its evidence, and the fact finder returned an acquittal.

That distinction matters. A dismissal means the prosecution decided not to go forward. A not guilty verdict means the Commonwealth went forward, was heard in full, and failed to meet its burden of proof beyond a reasonable doubt.

What Happened

My client crossed over marked lanes. That is a minor motor vehicle infraction — a civil violation, the kind of thing that ordinarily results in a citation and nothing more. It was enough to justify a stop.

He refused all testing. He was arrested and charged with OUI.

By the time the case reached trial, the Commonwealth’s evidence had narrowed to the officer’s observations and one physical exhibit: a bottle of clear liquid recovered from the center cupholder, which the officer testified he believed contained alcohol.

The Cross-Examination That Decided the Case

Physical evidence carries weight with a fact finder in a way that an officer’s opinion does not. An opinion about bloodshot eyes can be argued about. A bottle sitting on the evidence table is a thing you can point to.

So I inspected the exhibit at trial. The bottle was full.

On cross-examination, I asked the officer how much liquid was in the bottle. He testified — fairly and honestly, as officers in this Commonwealth generally do — that it was full.

That answer took the exhibit apart. Assume everything the Commonwealth wanted assumed: assume the bottle contained alcohol, and assume it belonged to my client. A full bottle establishes that little or nothing was consumed from it. The Commonwealth’s most tangible piece of evidence, examined honestly, pointed away from consumption rather than toward it.

There is a broader lesson in that. In a Massachusetts OUI trial, the details of an exhibit matter as much as its existence. An open container in a vehicle proves that a container was in the vehicle. It does not prove who bought it, when it was opened, or whether a drop of it was consumed by the driver that night. Those questions get answered on cross-examination, or they do not get answered at all.

Why the Rest of the Case Was Not Enough

With the bottle neutralized, what remained was circumstantial — the familiar catalogue of observations that appears in virtually every OUI report written in Massachusetts.

The Commonwealth must prove beyond a reasonable doubt, under G.L. c. 90, § 24(1)(a)(1), that alcohol diminished the defendant’s ability to operate a motor vehicle safely. It is not enough to show that a driver consumed alcohol. Drinking is lawful. Driving after drinking is lawful. Impaired operation is the offense, and impaired operation is what must be proven.

Consider what the Commonwealth actually had:

• A marked lanes violation — a civil infraction that sober drivers commit constantly, from distraction, road conditions, or a moment of inattention
• An officer’s subjective impressions, which are opinion rather than measurement
• A full bottle that established nothing had been consumed from it

Stack those together and the total is still short of proof beyond a reasonable doubt. Weak circumstantial evidence does not become strong by accumulation.

The Refusal the Court Never Heard About

My client refused all testing. That refusal carried an immediate administrative cost at the Registry of Motor Vehicles — a license suspension that attaches regardless of what happens in the criminal case.

In the courtroom, it worked the other way. Under G.L. c. 90, § 24(1)(e), evidence that a defendant refused to submit to a chemical test is not admissible against him. The prosecutor cannot mention it. The prosecutor cannot argue that refusing shows consciousness of guilt. The fact finder does not hear about it at all.

This is one of the most consequential and least understood provisions in Massachusetts OUI law. The tradeoff — administrative suspension in exchange for a trial record with no test results in it — is a real one, and it deserves more careful thought than it usually gets from people making the decision on the roadside at two in the morning.

What This Means If You Are Charged

Two things are worth taking from this case.

The first is that an officer’s conclusion is not a verdict. Every OUI report reads about the same. Whether those observations actually establish impaired operation is a separate question, and it gets tested in a courtroom.

The second is that cases are won on details that are easy to overlook. Nobody wins an acquittal by arguing in general terms that the evidence is weak. This case was won by physically examining an exhibit before trial and asking one specific question about it. That work has to be done, and it has to be done by someone looking for it.

I will add that the officer here testified honestly. That deserves saying. The great majority of Massachusetts police officers testify truthfully about what they observed. The disagreement in most OUI cases is not about honesty — it is about whether honestly observed facts add up to proof beyond a reasonable doubt. Very often they do not.

Charged With OUI in Massachusetts?

Not every OUI case should be tried, and any lawyer who tells you otherwise is not being straight with you. But the decision about whether to try a case should be made after someone has examined the Commonwealth’s evidence closely enough to know what it is actually worth.

I have defended Operating Under the Influence charges in Massachusetts district courts for over thirty years, primarily in Worcester County and Middlesex County. If you are facing an OUI, DUI or DWI charge, call me directly at (508) 393-4162.

In this blog, OUI (Operating Under the Influence), DUI (Driving Under the Influence) and DWI (Driving While Intoxicated) are used interchangeably as synonymous acronyms for the same offense known colloquially as drunk driving.

Counsel does not guarantee the same or similar results in your case.