Reciting the alphabet, often from a letter other than A to a letter short of Z, is one of the oldest roadside tricks officers use during a DUI stop. I am Joel Brand, and while it feels like a memory game anyone should pass, it is not a validated test of impairment, and it is challenged the same way the other roadside tests are.
How it is administered
The officer asks you to recite part of the alphabet out loud, without singing it, sometimes starting and stopping at unusual letters such as "recite from E to P." It is treated as a divided-attention task: the idea is to see whether you can recall a familiar sequence and follow an odd instruction at the same time, while standing on the roadside under the stress of a police stop.
It is not a standardized test
The alphabet test is not one of the three NHTSA-standardized field sobriety tests (HGN, walk-and-turn, and one-leg stand). It has no validated scoring and no scientific link between a stumble and a specific level of impairment. That distinction matters a great deal, because even the three standardized tests are far from perfect, and a non-standardized test like this one lacks even the limited validation studies the standardized battery underwent.
Why "standardized" matters
The reason the standardized-versus-non-standardized distinction is so important is that the three validated tests at least have published administration procedures and research, however contested, attempting to correlate specific clues with impairment. The alphabet test has none of that. There is no agreed-upon way to score it, no defined number of errors that signals intoxication, and no study establishing that fumbling a recitation from an odd letter means a person is impaired rather than nervous, distracted, or simply tripped up by an unusual request. When a test has no objective standard, the result is purely the officer's impression, which is exactly the kind of subjective evidence that should be treated with skepticism.
Why it is unreliable
Plenty of sober people stumble reciting the alphabet from an odd starting letter under pressure, especially if English is not their first language, if they are nervous, or if they have a learning difference. Anxiety alone degrades performance on exactly this kind of recall-under-pressure task, and a roadside stop with flashing lights is about as anxiety-inducing a setting as exists. What the officer records is an opinion about how you performed, not a measurement of your blood-alcohol level or your actual ability to drive.
Innocent explanations the report ignores
Officers tend to attribute any hesitation to alcohol, but the list of innocent explanations is long: nervousness, a speech or language difference, a learning disability, fatigue, the distraction of traffic and headlights, hearing difficulty, and simple unfamiliarity with being asked to recite letters from the middle of the alphabet on command. None of these has anything to do with impairment, yet each can produce exactly the kind of stumble an officer writes down as a "clue." Part of my job is making sure the genuine reason for a hesitation is heard, rather than letting the officer's assumption stand unchallenged.
Why officers use it anyway
If the alphabet test is so unreliable, why do officers keep using it? Part of the answer is habit and tradition; it is quick, requires no equipment, and has been part of roadside investigations for decades. Another part is that it is designed to produce something the officer can write down as a "clue," which helps justify an arrest decision the officer may have already made. Understanding this helps put the test in perspective: it functions less as a neutral scientific measurement and more as a way to build a narrative supporting the arrest. Recognizing that purpose is the first step to challenging how much weight the result should carry.
How it fits the bigger picture
The alphabet test almost never decides a case on its own. It is one piece the prosecution stacks alongside the driving pattern, the officer's observations, the standardized tests, and any chemical result, hoping the pile adds up to impairment. That means discrediting it is valuable not because the test alone convicts anyone, but because removing or weakening each piece chips away at the cumulative impression the prosecution is trying to create. When a non-validated test like this is exposed as the subjective judgment call it really is, the whole impairment narrative looks weaker, and the genuinely contestable evidence, especially the chemical result, comes into sharper focus.
How I challenge it
These tests are scored on an officer's opinion, and that opinion is what I take apart: deviations from the standardized instructions, the conditions at the scene (lighting, slope, traffic, your footwear), your age, weight, and any injury or medical condition, and the innocent reasons a sober person stumbles on the side of a road. It rarely stands alone, and discrediting it weakens the whole impairment case. See the unfair field sobriety test defense and my top DUI defenses.
What the recording usually shows
As with every roadside test, the body-cam and dash-cam footage is often more revealing than the officer's report. A report may describe a defendant who "could not complete" the recitation, while the video shows someone who simply asked the officer to repeat an unusual instruction, started over, or was talking over passing traffic. I obtain the footage in every case, because the gap between the officer's written conclusion and what actually happened on camera is frequently where this kind of subjective test falls apart.
You can decline field sobriety tests
For drivers 21 and over, the roadside tests are generally voluntary, and there is usually no penalty for politely declining. That is very different from the post-arrest chemical test, which is not optional. I explain the distinction in whether to refuse field sobriety tests. Compare the others: the HGN eye test, walk and turn, and one-leg stand.
Did a roadside test help convict you? Let's look.
If a field sobriety test is driving the case against you, it deserves a hard, informed challenge. Use the free case analysis on this page, or call me directly at (888) 271-6644. I answer my own phone, 24/7.