The Filutowski Law Firm, PLLC

The New York Times reported on July 24, 2010: Drivers on Prescription Drugs Are Hard to Convict  The Seattle Times reprinted it as: Prescription ‘drugged driving’ may be on rise

The accident that killed Kathryn Underdown had all the markings of a drunken-driving case. The car that hit her as she rode her bicycle one May evening in Miller Place, N.Y., did not stop, the police said, until it crashed into another vehicle farther down the road.

The driver could not keep her eyes open during an interview with investigators, according to the complaint against her, and her speech was slow and slurred. But the driver told police she had not been drinking; instead, the complaint said, she had taken several prescription medications, including a sedative and a muscle relaxant. She was charged with vehicular manslaughter and driving under the influence of drugs. The latter is an increasingly common offense, law-enforcement officials say, at a time drunken-driving deaths are dropping and when prescriptions for narcotic painkillers, anti-anxiety medications, sleep aids and other powerful drugs are rampant.

The issue is vexing police officials because, unlike with alcohol, there is no agreement on what level of drugs in the blood impairs driving.

The behavioral effects of prescription medication vary widely, depending on the drug and on the person taking it. Some, such as anti-anxiety drugs, can dull alertness and slow reaction time; others, such as stimulants, can encourage risk-taking and hurt the ability to judge distances. Mixing prescriptions, or taking them with alcohol or illicit drugs, can exacerbate impairment and sharply increase the risk of crashing, researchers say.

“In the past it was cocaine, it was PCP, it was marijuana,” said Chuck Hayes of the International Association of Chiefs of Police. “Now we’re into this prescription-drug era that is giving us a whole new challenge.”

The police also struggle with the challenge of prosecuting someone who was taking valid prescriptions.

“How do we balance between people who legitimately need their prescriptions and protecting the public?” said Mark Neil, senior lawyer at the National Traffic Law Center, which works with prosecutors.

Setting any kind of limit for prescription medications is complicated, partly because the complex chemistry of drugs makes their effects more difficult to predict than alcohol’s. And determining whether a driver took drugs soon before getting on the road can be tricky, since some linger in the body for days or weeks.

Many states are confronting the problem as part of a broader effort to keep so-called drugged drivers, including those under the influence of marijuana and other illegal drugs, off the road.

“We have a pretty clear message in this country that you don’t drink and drive,” said former Seattle Police Chief Gil Kerlikowske, President Obama’s top drug-policy adviser, who wants to reduce drugged-driving accidents by 10 percent over the next five years. “We need very much to have a similar message when it comes to drugs.”

There is no reliable data on how many drivers are impaired by prescription drugs, but law-enforcement officials say the problem is growing so quickly that states are putting hundreds of police officers through special training to detect signs of drug impairment and clamoring for better technology to detect it.

Even the prevalence of drug-impaired driving is unknown, since many states combine the arrest data with that for drunken driving. Kerlikowske points to a 2007 survey by the National Highway Traffic Safety Administration, which screened 5,900 nighttime drivers around the country and found that 16.3 percent tested positive for legal or illegal drugs.

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