After a long legal wrangle, some defendant-side attorneys have audited the source-code of Alcotest, the breathalyzer used in New Jersey DUI stops. Turns out it was programmed by muppets who don't know how to calculate an average and who throw out error messages by the dozen.
Like voting-machine vendors, breathlyzer vendors go crazy when defendants ask to have their source-code audited, claiming that there's a bunch of top-s33kr1t stuff in there that their competitors would steal. And, just like voting-machine software, breathalyzer software appears to have been written by squirrels dancing on the keyboard until they got something that would compile.
2. Readings are Not Averaged Correctly: When the software takes a series of readings, it first averages the first two readings. Then, it averages the third reading with the average just computed. Then the fourth reading is averaged with the new average, and so on. There is no comment or note detailing a reason for this calculation, which would cause the first reading to have more weight than successive readings. Nonetheless, the comments say that the values should be averaged, and they are not...
SUMMARY OF THE SOFTWARE HOUSE FINDINGS
SOURCE CODE OF THE
DRAEGER ALCOTEST 7110 MKIII-C
4. Catastrophic Error Detection Is Disabled: An interrupt that detects that the microprocessor is trying to execute an illegal instruction is disabled, meaning that the Alcotest software could appear to run correctly while executing wild branches or invalid code for a period of time. Other interrupts ignored are the Computer Operating Property (a watchdog timer), and the Software Interrupt.
The LG Watch Urbane 2nd Edition LTE was the company’s latest answer to Apple’s dominating entry into the market. But it died fast, pulled off the shelves within a week due to an unspecified problem with the display. Ron Amadeo writes that they “are not in a position to communicate the specifics of the issue […]
I’ve been using Stanley’s classic flask for years (I literally packed one, full of nice bourbon, in my suitcase this morning for the Melbourne/Sydney/Berlin trip I’m leaving on tonight), and I have no complaints: it’s beautiful, easy to close, and rugged.
Mattel’s Hello Barbie has a microphone and a wifi interface, and it transmits the phrases it hears to a central server in order to parse them and formulate a response. Mattel claims that the data isn’t being retained or harvested for marketing purposes, and assures parents that they can make Barbie stopping eavesdropping on them […]
Today and tomorrow only we are offering an additional 15% off the entire Boing Boing store (some exclusions may apply). Simply use coupon code: BLACKFRIDAY at checkout! Below are a few of our favorites from the store: First Generation Lytro 16GB Camera: The First Consumer Camera to Capture the Entire Light FieldAdobe Training Videos: Lifetime Subscription: 6,000+ Adobe […]
Today only in the Boing Boing Store we are offering an extra 15% off of the below VPN deals just use coupon code: VPN15 at checkout. proXPN VPN: Premium Lifetime Subscription Surf the web with ultimate peace of mind – both at home and on the road – over proXPN’s fully-encrypted, lightning-fast servers. Your lifetime premium subscription […]
These knitted gloves are here to save the day (and your hands) with an ultra-comfy, double-layer that will allow you to stay warm and use your phone. Now you can take photos on the fly, text, Tinder, and more without letting freezing temperatures get in your way. Plus they work with all touchscreens, so no […]