breathalyzers – Techdirt (original) (raw)

Massachusetts Court Says Breathaylzers Are A-OK Less Than Three Months After Declaring Them Hot Garbage

from the good-enough-for-the-drukqs dept

Breathalyzers are like drug dogs and field tests: they are considered infallible right up until they’re challenged in court. Once challenged, the evidence seems to indicate all of the above are basically coin tosses the government always claims to win. Good enough for a search or an arrest when only examined by an interested outsider who’s been subjected to warrantless searches and possibly bogus criminal charges. But when the evidentiary standard is a little more rigorous than roadside stops, probable cause assertions seem to start falling apart.

Drug dogs are only as good as their handlers. They perform probable cause tricks in exchange for praise and treats. Field drug tests turn bird poop and donut crumbs into probable cause with a little roadside swirling of $2-worth of chemicals. And breathalyzers turn regular driving into impaired driving with devices that see little in the way of calibration or routine maintenance.

Courts have seldom felt compelled to argue against law enforcement expertise and training, even when said expertise/training relies on devices never calibrated or maintained, even when said devices are capable of depriving people of their freedom.

Once every so often courts take notice of the weak assertions of probable cause — ones almost entirely supported by cop tools that remain untested and unproven. Late last year, a state judge issued an order forbidding the use of breathalyzer results as evidence in impaired driving prosecutions. District court judge Robert Brennan said he had numerous concerns about the accuracy of the tests, and the oversight of testing, and the testing of test equipment by the Massachusetts Office of Alcohol Testing.

“Breathalyzer results undeniably are among the most incriminating and powerful pieces of evidence in prosecutions involving either alcohol impairment or “per se” blood alcohol percentage as an element. Their improper inclusion in criminal cases not only unfairly impacts individual defendants, but also undermines public confidence in the criminal justice system.”

The pause on using breathalyzer tests as evidence is only the most recent development in a year’s long challenge of their accuracy. In 2017, ruling on the reliability of tests taken between 2012 and 2014, Brennan found that while the tests were accurate, the way the state maintained them was not.

A court finally found a reason to push back against assertions of training and expertise, as well as assertions that cop tech should be considered nigh invulnerable. But the pushback is over. The same court is apparently now satisfied that the tech it questioned last November is good enough to make determinations that can deprive people of their property and freedom.

Breathalyzers are back in business in the Bay State after a judge dropped the suspension on breath tests, which cops use to bust and prosecute drunk drivers.

Salem Judge Robert Brennan, who in November ordered the statewide exclusion of breath test results, has tossed out the police Breathalyzer pause.

The Draeger Alcotest 9510 breath tests have come under fire for several years, as a Springfield OUI attorney represents defendants in statewide Breathalyzer litigation. Lead defense attorney Joseph Bernard has been raising concerns about the software problems impacting the scientific reliability of the breath test.

But the Salem judge in the ruling vacating the Breathalyzer suspension said the Draeger Alcotest 9510 “produces scientifically reliable breath test results.”

Judge Brennan isn’t willing to let the possibly subpar be the enemy of the verifiable good. If you went long on breathalyzers late last year, it’s time to cash out. According to Judge Brennan, whatever’s determined to be good enough is, well, good enough to deprive people of their liberties. Brennan’s decision notes there’s no such thing as “perfect source code” or “flawless machines.” Therefore, state residents should just resign themselves to the fact their freedom is reliant on the Massachusetts’ OKest Breathalyzers.

“This Court remains satisfied that the public can have full confidence in the results produced by the Alcotest 9510…”

But can they though? Who knows? Certainly not this court. Certification information has been offered but prior to the November 2021 decision, state prosecutors were voluntarily excluding breathalyzer evidence. That’s not exactly a vote of confidence. And this vote against breathalyzers was coming from entities judged almost solely on their prosecutorial wins, necessitating the need to achieve as many easy wins as possible.

Weirdly, the judge says the tests are OK but their oversight isn’t. Despite the fact that both facets need to be on the same level to avoid abuse and unjustified arrests, the judge is allowing roadside testing to move forward while criticizing the Office of Alcohol Testing for its “lack of candor and transparency” when dealing with the court and criminal defendants.

In the end, the system prevails. Massachusetts cops can continue to use questionable tech to effect arrests and engage in warrantless searches and detentions. As for its oversight, it’s only being threatened with the possibility of further action from this court — the same court that ended breathalyzer testing in November (citing concerns about equipment and accuracy) only to reverse course three months later.

One imagines the demands placed on the Office of Alcohol Testing will be just as temporary as this court’s momentary pause on the use of unproven tech. The desire to be in the police business once again outweighs the public’s concern about being on the wrong end of baseless prosecutions. The onus is back on presumably innocent defendants to prove the government isn’t using faulty tech to lock them up.

Filed Under: 4th amendment, breathalyzers, evidence

Roadside Breath Tests Are Just As Unreliable As Field Drug Tests

from the magic-8-ball-says... dept

Portable alcohol testing equipment (a.k.a. breathalyzers) have been called “magic black boxes” and “extremely questionable” by judges. And yet, they’re still used almost everywhere by almost every law enforcement agency. They’re shiny and sleek and have knobs and buttons and digital readouts, so they’re not as immediately sketchy as the $2 drug-testing labs cops use to turn donut crumbs into methamphetamines. But they’re almost as unreliable as field drug tests.

Even when the equipment works right, it can still be wrong. But it so very rarely works right. Cops buy the equipment, then do almost nothing in terms of periodic testing or maintenance. A new report from the New York Times shows this equipment should probably never be trusted to deliver proof of someone’s intoxication. And the failure begins with the agencies using them.

The machines are sensitive scientific instruments, and in many cases they haven’t been properly calibrated, yielding results that were at times 40 percent too high. Maintaining machines is up to police departments that sometimes have shoddy standards and lack expertise. In some cities, lab officials have used stale or home-brewed chemical solutions that warped results. In Massachusetts, officers used a machine with rats nesting inside.

There are also problems with the machines themselves, even when they’ve been properly maintained. And the problems aren’t limited to single manufacturer. Dräger, the company that owns the name “Breathalyzer,” produced a machine that experts said with “littered with thousands of programming errors.” This finding was made during a rare examination of breath-testing equipment by defense attorneys granted by the New Jersey Supreme Court. Those findings resulted in zero lost law enforcement customers for Dräger.

CMI’s breath tester fared no better when examined by toxicology lab experts. CMI’s Intoxilyzer gave inaccurate results on “almost every test,” according to the report. This didn’t stop multiple law enforcement agencies from purchasing CMI’s tech, even when a Florida court had this to say about the Intoxilyzer.

The Intoxilyzer 8000 is a magic black box assisting the prosecution in convicting citizens of DUI. A defendant is required to blow into the box. The defense has shown significant and continued anomalies in the operation of the Intoxilyzer 8000’s operation. The prosecution argues most of the tests do not show anomalies. In fact, a high percentage of the tests may show no anomalous operation. That the Intoxilyzer 8000 mostly works is an insufficient response when a citizen’s liberty is at risk.

In the state of Washington, state police spent $1 million on Dräger breath testers to replace aging machines. Rather than roll this out in a controlled fashion with proper testing, state officials opted to bypass outside testing of the software to speed up deployment to police officers. Six years after this speedy rollout, the device’s reliability was called into question in court. The court allowed defense lawyers to review the software. The result of this testing was never made public… at least not officially. The experts who reviewed Dräger’s equipment had this to say about it:

The report said the Alcotest 9510 was “not a sophisticated scientific measurement instrument” and “does not adhere to even basic standards of measurement.” It described a calculation error that Mr. Walker and Mr. Momot believed could round up some results. And it found that certain safeguards had been disabled.

Among them: Washington’s machines weren’t measuring drivers’ breath temperatures. Breath samples that are above 93.2 degrees — as most are — can trigger inaccurately high results.

Dräger sent the researchers a cease-and-desist order, forbidding them from discussing their findings with anyone and demanding they destroy all copies of their report. Unfortunately for the company, the preliminary report had already been distributed to other defense lawyers and made its way to a number of websites.

The rush to deploy equipment wasn’t just a problem in Washington. The same thing happened in Colorado, but the rollout was even more haphazard and borderline illegal. There weren’t enough techs available to set up the purchased equipment, so the manufacturer (CMI) sent a salesperson and one of its lawyers to help with the initial calibration and certification. Only one actual lab supervisor was involved. The rest of the workforce was composed of assistants and interns. At best, one person was qualified to do this job. Since this seemed likely to pose a problem down the road if the equipment or readings were challenged in court, the state lab used an extremely-questionable workaround.

[T]he lab’s former science director said in a sworn affidavit that her digital signature had been used without her knowledge on documents certifying that the Intoxilyzers were reliable. The lab kept using her signature after she left for another job.

In Washington, DC, faulty equipment wasn’t taken out of service by the person overseeing the program. Instead, the person meant to ensure the equipment was working properly was making everything worse when not acting as a freelance chemist.

Mr. Paegle’s predecessor, Kelvin King, who oversaw the program for 14 years, had routinely entered incorrect data that miscalibrated the machines, according to an affidavit by Mr. Paegle and a lawsuit brought by convicted drivers.

In addition, Mr. Paegle found, the chemicals the department was using to set up the machines were so old that they had lost their potency — and, in some cases, Mr. King had brewed his own chemical solutions. (Mr. King still works for the Metropolitan Police Department. A department spokeswoman said he was unavailable for comment.)

Once the courts were informed, 350 convictions were tossed. The damage here was relatively minimal. In Massachusetts — where crime lab misconduct is an everyday occurrence — 36,000 tests were ruled inadmissible. In New Jersey, 42,000 cases were affected by breath test equipment that had never been set up properly.

Very few corrective measures have been implemented by law enforcement agencies. The fixes that are being made have almost all been the result of court orders. The unreliability of roadside breath tests have led several courts to reject pleas or prosecutions based solely on tests performed by officers during traffic stops. But none of this seems to have had an effect on law enforcement agencies who continue to purchase unreliable equipment and deploy it with proper safeguards or testing.

Breathalyzers are field tests in more than one sense of the word. Drivers are merely lab rats who face the possibility of losing their freedom, their licenses, and possibly their vehicles because a “magic black box” told a cop the driver was under the influence.

Filed Under: accuracy, breathalyzers, dui, evidence, police, roadside breath tests, testing

Researchers Find Breathalyzers To Be Just More Faulty Cop Tech Capable Of Putting Innocent People In Jail

from the may-as-well-just-go-back-to-hunches dept

Good news for motorists: law enforcement is using something just as unreliable as $2 field drug tests to justify arrests and searches. Field drug tests have been known to declare donut crumbs meth and drywall dust cocaine. Yet they’re still in use, thanks to their low price point. A costlier apparatus, used to determine blood alcohol levels during sobriety tests, appears to be just as broken as cheap drug tests.

Alcotest, made by German medical tech company Draeger, is used by a large number of US law enforcement agencies. Challenges to test results led to Draeger turning code over to defense attorneys, who soon discovered a lot of variables affected breath tests — many of which weren’t addressed by the device’s software or default settings used by officers. Zack Whittaker at ZDNet has the full report:

One attorney, who read the report, said they believed the report showed the breathalyzer “tipped the scales” in favor of prosecutors, and against drivers.

One section in the report raised issue with a lack of adjustment of a person’s breath temperature.

Breath temperature can fluctuate throughout the day, but, according to the report, can also wildly change the results of an alcohol breath test. Without correction, a single digit over a normal breath temperature of 34 degrees centigrade can inflate the results by six percent — enough to push a person over the limit.

The quadratic formula set by the Washington State Patrol should correct the breath temperature to prevent false results. The quadratic formula corrects warmer breath downward, said the report, but the code doesn’t explain how the corrections are made. The corrections “may be insufficient” if the formula is faulty, the report added.

The Washington State Patrol, whose device/software was being examined in this case, said it did not install the breath temp component. That eliminates one questionable variable in this case. Other law enforcement agencies may have installed the component without realizing it could result in false positives. But it’s far from the only variable affecting test results the examination of Draeger’s software uncovered. The Washington State Patrol also disabled another feature that might have prevented false positives.

The code is also meant to check to ensure the device is operating within a certain temperature range set by Draeger, because the device can produce incorrect results if it’s too hot or too cold.

But the report said a check meant to measure the ambient temperature was disabled in the state configuration.

“The unit could record a result even when outside of its operational requirements,” said the report. If the breathalyzer was too warm, the printed-out results would give no indication the test might be invalid, the report said.

The State Patrol was more equivocal in its repudiation of this finding. It said it had been “tested and validated in various ambient temperatures.” Draeger itself insisted the unit will not produce readings if the device is operating outside of recommended temperature ranges.

The report also noted there appeared to no steps taken to counteract normal wear-and-tear. The fuel cell used to measure alcohol levels decays over time — a time period accelerated by frequent use (sobriety checkpoints, for instance). This can also affect test results if the decay isn’t factored in. Draeger says its devices should be re-calibrated every year. The Washington State Patrol only require one recalibration six months into the device’s lifespan.

Challenges against the device’s test results have occurred in other states. Massachusetts — a state where substance abuse-related evidence has never been more unreliable — hosted one legal battle over the devices’ reliability. A ruling in 2014 declared test results obtained over the previous two years “presumptively unreliable” after it was discovered that only two of the state’s 392 breathalyzers had ever been properly calibrated.

This battle between critics of the devices and their deployment methods (untested, uncalibrated) and a judicial system that still insists the devices are reliable enough has gone on for most of a decade. Added to the mix is Draeger’s own legal action. This preliminary report, distributed to defense lawyers at conference last year, was the subject of a cease-and-desist letter from Draeger, which claimed the report violated a protective order it had obtained from a US court, prohibiting the distribution of its source code. But no source code was distributed and the C&D appears to Draeger attempting to prevent questions about its device’s reliability from spreading further than a handful of court cases. And in those legal challenges, Draeger has been able to keep discussion of its devices and software under wraps via injunctions.

While the report’s authors claim the report is still in its preliminary stages and should not be considered the final word on breathalyzer reliability, this initial examination doesn’t suggest deeper digging will find a more reliable machine underneath the surface-layer flaws.

Filed Under: alcotest, breathalyzers, drunk driving, false positives, police, source code
Companies: draeger