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The Seattle DUI and Criminal Defense Blog

How Police Measure Your Speed

Posted Thursday, August 2, 2018 by Andrew Charles Huff

*Laser Speeding Tickets * Laser devices, also known as LIDAR (light distance and ranging), measure a car’s speed by using a time/distance calculation. A narrow band of light originates from the laser device and is aimed at the target vehicle and the… read more

Seattle Traffic Tickets and the “Pre-Hearing Conference”

Posted Wednesday, August 1, 2018 by Andrew Charles Huff

For the past several years, I have been retained by more people ticketed in downtown Seattle for not complying with the many confusing signs directing cars, bikes and pedestrians. If you are unfortunate to have received a ticket in downtown Seattle, your… read more

Why the Datamaster Breath Machine is Unreliable

Posted Friday, July 27, 2018 by Andrew Charles Huff

Infrared breath testing is susceptible to several different kinds of errors. The first fallacy is that an individual’s actual blood/breath partition ratio is 2100:1. In fact, the actual blood/breath partition ratio in any given case depends on several… read more

Washington Breath Test Machines-What’s the Status?

Posted Friday, July 27, 2018 by Andrew Charles Huff

Washington has approved three breath testing machines for DUI investigations: 1) the Datamaster, 2) the Datamaster CDM, and 3) The Draeger Alcotest 9510. The first two machines, the Datamaster and e Datamaster CDM are being phased out in favor of the… read more

Arrested for DUI? What You Should Know

Posted Friday, July 20, 2018 by Andrew Charles Huff

As a criminal defense attorney representing those accused of, among other things Driving Under the Influence (DUI), I routinely receive calls from people just arrested who are feeling completely overwhelmed. No matter the circumstances, you will be… read more

U.S. Supreme Court Rules for Cell Phone Privacy Interests

Posted Friday, June 22, 2018 by Andrew Charles Huff

When the government wants to track an individual’s location through cell phone records over an extended period of time, they need to get a warrant, says the U.S. Supreme Court in a major ruling on privacy. As most know, anyone can track your whereabouts… read more

Traffic Ticket by Radar

Posted Thursday, June 21, 2018 by Andrew Charles Huff

Radar guns or Speed Measuring Devices work by sending and receiving radio signals. They work by directing a radio signal towards a vehicle, then receiving the same signal as it bounces off the vehicle. Using what is known as the Doppler Effect, the device… read more

More Problems with the Draeger Alcotest 9510 Breath Machine

Posted Wednesday, June 20, 2018 by Andrew Charles Huff

Washington state’s new breath test machine the Draeger Alcotest 9510 uses two sensors to measure alcohol content in a breath sample: An infrared beam that measures how much light goes through the breath, and a fuel cell that measures the electrical… read more

It’s the Source Code, Stupid!

Posted Thursday, June 14, 2018 by Andrew Charles Huff

The source code behind a police breathalyzer widely used in multiple states – and millions of drunk driving arrests – is under fire. It’s the latest case of technology and the real world colliding – one that revolves around source code, calibration of… read more

Terry Stop? What’s a Terry Stop?

Posted Thursday, June 14, 2018 by Andrew Charles Huff

Most people know that as a general rule, a police officer cannot search you or your vehicle without probable cause, according to article I, section 7 of the Washington State Constitution. But there are exceptions to this warrant requirement. In fact… read more

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