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Breathalyzer Source Code Ruling Upheld

dfn_deux writes "In a follow up to a 2005 story where Florida judge Doug Henderson ruled that breathalyzer evidence in more than 100 drunk driving cases would be inadmissible as evidence at trial, the Second District Court of Appeal and Circuit Court has ruled on Tuesday to uphold the 2005 ruling requiring the manufacturer of the Intoxilyzer 5000, Kentucky-based CMI Inc, to release source code for their breathalyzer equipment to be examined by witnesses for the defense of those standing trial with breathalyzer test result being used as evidence against them. '"The defendant's right to a fair trial outweighed the manufacturer's claim of a trade secret," Henderson said Tuesday. In response to the ruling defense attorney, Mark Lipinski, who represents seven defendants challenging the source codes, said the state likely will be forced to reduce charges — or drop the cases entirely.' ... What this really means is that outside corporations cannot sell equipment to the state of Florida and expect to hide the workings of their machine by saying they are trade secret. It means the state has to give full disclosure concerning important and critical aspects of the case."

35 of 520 comments (clear)

  1. At last... by Anonymous Coward · · Score: 5, Insightful

    Finally
    Guess there are some judges out there that understand justice.

    1. Re:At last... by darguskelen · · Score: 5, Insightful

      They only have to make the code "available to witnesses for the defense" and there is no stipulation that the code can't be sealed/have a non-disclosure around it. I haven't been to court, so I don't know if NDAs are enforceable on evidence, but I do know that judges can seal a case/evidence if need be.

    2. Re:At last... by mhall119 · · Score: 4, Insightful

      I believe the point of this ruling is that, without the source code, they can't legally prove that these people are in fact drunk drivers. So you'd be just as accurate to say: "Hooray, another innocent driver back on the streets!"

      Of course, this is Florida, where people drive like they're drunk even when they're not.

      --
      http://www.mhall119.com
    3. Re:At last... by Gerzel · · Score: 4, Insightful

      Now to get this recognized for voting machines.

      Though that will be harder because while more obvious it has far more money on the other side.

    4. Re:At last... by Mysticalfruit · · Score: 3, Insightful

      I think it should be law that any system that's used by law enforcement should have its internals made available.

      It's only fair if a piece of DNA can put me in jail I should be allowed to read the algorithm that was used to infer that my DNA matched the strand that was put into the machine.

      --
      Yes Francis, the world has gone crazy.
    5. Re:At last... by superdave80 · · Score: 3, Insightful

      And how do you know they are drunk? Oh, the black box says so? Well, that's good enough for me!

      I'm going to start selling little boxes with a tube on the side and a display that always displays a random number on the side from .08 to .15 when you blow into the tube. And when you get arrested due to my little black box, you can't ever ask me how it works, because my 'trade secret' is more important than your innocence.

  2. It's a good day. by Jawn98685 · · Score: 5, Insightful

    The courts got it right, this time. Yeah, sure, the whole argument is a no-brainer for anyone who thinks about it for more than 30 seconds, but the jurists weighing similar cases re. voting machine source-code seem to be struggling with it nonetheless.

    1. Re:It's a good day. by bit01 · · Score: 3, Insightful

      If the methods are correctly verified, I don't care whats in the "black box" just that it was verified, and unchanging in it's processing.

      Software is not statistical. That is, it's quite possible for a piece of software to run a 1000 times giving one result and on the 1001 time give a completely different result (e.g. the millenium bug or a rare race condition). Because of this no amount of black box testing can prove closed source software is correct. Even statistically correct because they have no way of reproducing the exact conditions at the time of the breathalyze (e.g. air temperature, unusual chemicals in air, unusual subject, unusual breathing, different humidity, different usage history, different key press timing, low battery, physical shock, manipulative policeman etc. etc.).

      Due to bad coding practices race conditions are extremely common in software. You've seen one every time a program acted even the tiniest bit different on two different runs with the same conditions. Closed source covers a multitude of such sins.

      Particularly in legal cases there needs to be accountability, and closed source software means there is no accountability. Source code doesn't solve all problems (bugs and race conditions can be obscure) but it is a helluva a lot better than closed source and black box testing.

      ---

      Don't be a programmer-bureaucrat; someone who substitutes marketing buzzwords and software bloat for verifiable improvements.

  3. Corporations must show responsibility as well: by Smidge207 · · Score: 4, Insightful

    As pesky as the Bill of Rights can be to swift justice and severe vengeance, I do remember something about the the accused having a right to face their accuser. If the Intoxilyzer uses buggy firmware that results in inaccurate readings, then the accused has every right to question it. The company that makes the Intoxilyzer must be held responsible for its actions as well. Someday, somewhere, some company will step up and say, "Yes, we knew our product was faulty. But we have shareholders who will sell our stock in a heartbeat if we miss our mark in any quarter."

    Holding both the accuser and the accused responsible for their actions is what helps create a society based on the rule of law. Otherwise, we'd be a police state. As a practicing trial attorney I *much* prefer the former.

    =Smidge=

    --
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    1. Re:Corporations must show responsibility as well: by IndustrialComplex · · Score: 4, Insightful

      pesky as the Bill of Rights can be to swift justice and severe vengeance, I do remember something about the the accused having a right to face their accuser. If the Intoxilyzer uses buggy firmware that results in inaccurate readings, then the accused has every right to question it.

      Don't even argue that it might be buggy.

      "If I touch this technisphere to the forehead of the accused and ask a question, it will tell us if he is lying"
      *performs action and asks question*
      "Outlook hazy, ask again"

      In all seriousness, what would prevent a black box from doing any sort of action if it were treated in any manner outside of it's original qualification tests? Without the code, you can't know that. It could give a 0.1 BAC boost if you hold it at a 10% angle while administering the test.

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  4. Equipment = voting machines? by DriedClexler · · Score: 4, Insightful

    I know the "related stories" says this too, but just to get the ball rolling:

    What this really means is that outside corporations cannot sell equipment to the state of Florida and expect to hide the workings of their machine by saying they are trade secret. It means the state has to give full disclosure concerning important and critical aspects of the case."

    So, will this mean voting machine source code will have to be disclosed?

    Personally, I'm most surprised that:

    a) Governments don't require source code disclosure, at least for purposes of review, when they ask for bids or shop for equipment/software,
    b) It's so hard for them to find someone willing to meet a).

    --
    Information theory is life. The rest is just the KL divergence.
    1. Re:Equipment = voting machines? by Abreu · · Score: 3, Insightful

      Well, it might be a good incentive to companies trying to sell Solaris, Linux or other open source solutions...

      --
      No sig for the moment.
  5. Re:Good luck with that! by morgan_greywolf · · Score: 5, Insightful

    No. Did you bother reading the summary? The judge ruled the defendant in a criminal case has the right to review the source code of the machine that was used to convict him.. It's not like they ruled that CMI had to open source the thing. That seems pretty reasonable to me.

  6. Re:Open Source by internerdj · · Score: 4, Insightful

    For this company, a major mistake in the previously secret code means that any conviction from the device's results is now under suspicion. They will have lost the trust of their ONLY customer market. Not to mention the fact that they will be named as defendants in any resulting lawsuit.

  7. Double-edged sword... by pla · · Score: 5, Insightful

    As much as I like hearing about cases of stickin' it to Da Man, I don't know that we should necessarily celebrate this decision quite so much...

    All software contains bugs. The defense will find some, and even if they only affect accuracy at the 7th decimal point, the case will get thrown out by a jury based on reasonable doubt. And this doesn't apply just to the current case, but to nearly any legal case using machine-generated evidence. The court allows DNA evidence? How about the firmware in the sequencing machine? Drug test came back positive? Let's see how Agilent's HPLC code rounds in integration.

    Now, in some cases (*cough* Diebold *cough*) we may have a valid gripe against a closed-source implementation. But in most cases... Not to make this a case of "for the children", but do you want drunks behind the wheel? Screw the children (calm down, Mr. Jackson, I didn't mean it like that), I don't want to DIAF because someone can't stop at two beers.

    1. Re:Double-edged sword... by QuoteMstr · · Score: 5, Insightful

      It's far worse to punish an innocent man than to let a guilty one go. Someone who habitually drives drunk will be caught eventually, even with a high standard of proof. On the other hand, an innocent, responsible man's life could be entirely ruined by a false conviction.

      If we were determined, we could get 100% of all criminals off the streets; but in doing so, we'd jail so many innocent people that the whole program would be a travesty.

  8. Re:Good luck with that! by IndustrialComplex · · Score: 4, Insightful

    That is sage advice for those of us who live in states with implied consent laws.

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  9. Re:So if Florida uses Microsoft Windows? by Ethanol-fueled · · Score: 4, Insightful

    If he has an unpatched box, all he has to do is turn on his compromised computer for it to be unknowingly used in such a manner by a remote controlled attacker seeking to traffic illegal material.

    That's enough to raise reasonable doubt.

  10. Re:Hahahaha. by Hairy+Heron · · Score: 5, Insightful

    Yeah it's utterly horrible that people would actually have to make sure that the evidence they are using against people is actually accurate and not being tainted by flaws in the equipment used or their methodologies. Oh the horrors of that!

  11. Re:Hahahaha. by blhack · · Score: 4, Insightful

    No. It means a bunch of drunk drivers will be on the streets free to run whoever they want over.

    I think that what it actually means is that a bunch of people who supposedly violated some arbitrary limit on the limit of a specific substance in their bloodstream might have their lives un-ruined.

    Is this going to matter for the people who were obviously intoxicated? No. This is going to matter for the people who passed a field sobriety test, didn't appear to be intoxicated, but admitted to having a beer that night and were required to take a breathalyser.

    I don't know about the rest of you, but I live in Phoenix, AZ. We have got some of the most absurd drink driving laws in the country. They recently changed the law from .08 to "impaired to the slightest degree". Thats right, boys, did you use mouthwash before heading out tonight? Well, you're spending a month in jail and losing your license.

    Wanna cut drunk driving? Keep the f*cking public transportation system running until 3:00am. Provide a free (or at least cheap) taxi service. Don't make a bunch of "creative" parking laws so that if you decide to take a cab home your car gets towed.

    --
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  12. Re:Great.. by MBGMorden · · Score: 4, Insightful

    Still, it's a start. If Florida is now legally required to use machines that make the source available, then they will show up as there is now a market for them. Other state departments will quite possibly start to use these knowing full well that if the closed source ones were successfully challenged in Florida, then they could be in their jurisdiction too.

    Plus it's just good publicity. It's finally a case where the public understood that "Wait, this magical doohickey has to have a way to figure out the data it provides . . . and if you can't tell us how then we can't rely on what it says.".

    --
    "People who think they know everything are very annoying to those of us who do."-Mark Twain
  13. Don't need everybody... by Firethorn · · Score: 4, Insightful

    Don't even need all 49. Consider the California Emissions standard. Many companies produce ONLY Cali rated cars because it's cheaper than adjusting their assembly line and shipping procedures to make custom cars only for California.

    Looking around on the internet, I only see something like 3 professional grade breathalyzers. At this moment, any company looking to do business in Florida has to disclose their source code*. If two companies don't, that leaves the remaining one with a monopoly in Florida - *ChaChing*.

    They might do this in Florida, but what if you get three or four other states passing the same rules? The pressure mounts.

    I'm all in favor of this measure. I'm strongly against DUI, but that's countered by my even stronger desire for accuracy and accountability in government, especially criminal matters. Of course, I'm also for NOT counting it as a DUI unless you're actually, driving. Sleeping in the backseat of a dead-cold car in the bar's parking lot with the keys in your jacket isn't DUI.

    *Well, they don't strictly have to, but Florida departments would be idiots to buy machines from companies that won't, as they're inadmissable as evidence.

    --
    I don't read AC A human right
  14. Re:Good luck with that! by clarkkent09 · · Score: 4, Insightful

    In this situation either you are actually drunk while driving, in which case you are a complete jerk and deserve to be locked up, or you are not drunk, in which case you'd save yourself a lot of unnecessary hassle if you just take the test. So your advice is only useful to the guilty trying to evade justice. Therefore, you are a TERRORIST!

    Seriously though, I'm sure there is a small probability of a breathalyzer malfunction but that applies to everything else in the world, and there is a way of dealing with that if it happens (as in this case, challenging the evidence and perhaps getting it dismissed in court, requesting a blood test etc) In any case if that is your concern, how do you explain refusing to take the blood test etc. Also, the whole thing about police trying to "bust as many as possible" doesn't make sense, unless you mean to actually catch as many drunk drivers as possible? Isn't that a good thing? Or do you mean the cops somehow rig breathalyzers to show alcohol levels that aren't there?

    --
    Negative moral value of force outweighs the positive value of good intentions.
  15. Re:Hahahaha. by Kawolski · · Score: 3, Insightful

    While I'm not happy to see a bunch of drunk drivers run free, it's a necessary evil. I hope this becomes precedent throughout the country, forcing manufacturers of devices used to send people to prison to be OPEN about how their devices work down to the source code. Besides, it's the defendant who's paying for the code review, not the taxpayers, and they should have the right to be allowed to review the code for a presence of a bug in the software may cause people to test over the limit regardless of their sobriety.

    Can you imagine death-penalty murder trials with "we know you did it because this machine we bought from MegaProfitTechCo analyzed the crime scene and says you're guilty." "How does that machine even work? DNA profiling?" "Can't tell you, it's a trade secret and very complicated, but it took a piece of evidence and said you're guilty."

  16. Re:Good luck with that! by arcmay · · Score: 3, Insightful

    What about providing proof that it was the version of the source code that was made available for review that was running on the machine at the time the test was administered?

  17. Re:Fish. by Jason+Levine · · Score: 3, Insightful

    Actually, what I see happening is either:

    1. Source code shows major flaws and the evidence is tossed out.
    2. Source code shows no major flaws and the evidence stands.

    In the case of #1, it is a win for society because the company will be forced to either fix their product or risk going out of business. What police station would want to use a breathalyzer that was proven in court to be flawed? Case #1 might be somewhat frequent initially, but will become rarer and rarer.

    In the case of #2, it is a win for society because the validity of the breathalyzer software will be affirmed. As case #1's work their way through, the software will be fixed more and more until case #2 is the predominant case.

    Either way, society wins. The alternative is a black box device that *might* function the way the makers say it does but might have unknown bugs.

    --
    My sci-fi novel, Ghost Thief, is now available from Amazon.com.
  18. Re:Good luck with that! by Shakrai · · Score: 4, Insightful

    That is sage advice for those of us who live in states with implied consent laws.

    Either way you are going to lose your license. The question is would you rather lose it through a civil process at DMV or would you rather lose it through the courts and get the added "bonus" of a criminal conviction? The best solution is obviously not to drive drunk but every lawyer I've ever talked to says to refuse the breath test if you've been drinking.

    --
    I want peace on earth and goodwill toward man.
    We are the United States Government! We don't do that sort of thing.
  19. Re:Good luck with that! by Arterion · · Score: 4, Insightful

    Honestly, it would probably be easier just to write it yourself. It's not some super-top-secret bit of magic code that no one else could reproduce. Have you ever tried working with someone else's code, with know knowledge or insight into the project?

    It's not pretty. And this isn't an open source project with a wiki and people contributing to documentation etc. It might have been this one guy who worked there 5 years ago and never made a single code comment.

    The code that does the actual work (the calculations) is probably very small. Most of it is probably written to interface with the device. And unless you are getting their exact device -- or one with identical specifications -- then you're going to have to rewrite that anyway. And I suspect they DO have a patent on the device, even if you did somehow get the code.

    --
    "That which does not kill us makes us stranger." -Trevor Goodchild
  20. Re:Good luck with that! by PacketShaper · · Score: 4, Insightful

    The penalties are most definitely *not* the same. You DO lose your driver's license. You do NOT have a DUI on your criminal record, probation, fines, etc.
    Always refuse.

  21. Re:Great.. by vux984 · · Score: 4, Insightful

    Of course, I don't believe drinking and driving should really even be a crime to begin with. There's already laws against hitting someone while driving.

    The point is to stop you from driving impaired, BEFORE you hit someone, so that you don't hit someone.

    Sort of like why 'attempted murder' is illegal. So they can legally stop you before you succeed.

  22. Re:Good luck with that! by Anonymous Coward · · Score: 4, Insightful

    But please, let's not get drunk drivers off the road. We need as many as possible out and about to cull the herd.

    OK, screw the "insensitive clod" thing, you heartless trolling fuck. My sister, a PhD chemist, was killed on her way to work when some ass-hole, shit-faced drunk before 8 AM, crossed the median and demolished her car with his F150. My brother-in-law, at 29, became a single father of 2 in the early hours the next morning. The fuck driving the truck recovered just fine. "Culling the herd" my ass.

    Breathalyzers may be crap, I know very little about them and no longer drink, but there is no excuse for allowing drunk drivers on the road.

  23. Breathalyzer Results Should NEVER be Used in Court by EdwardJohansson · · Score: 3, Insightful

    There are many factors that could alter the reading on a breathalyser. Our bodies get rid of alcohol in many different ways and at varying rates. Some people will naturally blow higher ratings than others. In Australia, after a breathalyzer is used to detect potential drunk drivers, the driver is taken into a "booze bus" or the nearest police station where a blood sample is taken and tested to give the true result. The breathalyzer result should NEVER used in court.

  24. Re:Good luck with that! by cparker15 · · Score: 3, Insightful

    Do you have some sort of evidence to support the idea that people who drive while intoxicated are more likely to infringe copyrights than people who don't drive while intoxicated?

    --
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  25. Re:Great.. by vux984 · · Score: 4, Insightful

    Driving with a .08 BAC doesn't mean you're actively trying to cause harm.

    That's your opinion.

    In my opinion getting yourself reaction and judgment impaired and then hopping into the drivers seat is actively trying to cause harm.

    Perhaps it shouldn't actually be a 'criminal offense'. But driving is a privilege not a right, and if you think its ok to get wasted and drive around you should have that privilege revoked.

    Now you might argue that 0.08BAC is too low and that it doesn't affect you or whatever, fine, we can have a debate about what the actual number should be. Although I think 0.08 is in the right ballpark, and there are a number of studies which have shown that as you get drunk your ability to accurately gauge how drunk you are goes down. So the people arguing they are just fine at X BAC are far more often than not straight up wrong.

  26. Re:Fish. by HeadlessNotAHorseman · · Score: 3, Insightful

    Why are they using a breathalyser as the final form of evidence anyway? In Australia they use the breathalyser as a quick and cheap test to see if you are over 0.05 (the legal limit for fully licensed drivers). If the test says "yes", they then withhold you and perform a blood test to get an accurate reading, the latter of which is used for the actual evidence. So if you do use a mouthwash just before the breathalyser, the blood test is going to prove that you are not drunk.

    --
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