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Cracking Down on Drunk Boaters

BUI Enforcement Getting a Boost with Standardized Field Sobriety Tests for Use on the Water
Boating Safety

With validated field sobriety tests for use on the water, we hope to stop intoxicated recreational boaters and to impress upon all boaters that operating a vessel while under the influence is too great a risk – to themselves, to their boat, and especially to others.

The U.S. Coast Guard reminds all boaters to “Boat Responsibly!” For more tips on boating safety, visit www.uscgboating.org.

An Increased Risk of a Boating Accident

The Coast Guard’s annual report, Recreational Boating Statistics, shows that a boat operator or passenger with a blood alcohol concentration above the legal limit runs a significantly increased risk of being involved in a boating accident. This is why:

•    Sun, wind, noise, vibration, and motion – “stressors" common to the boating environment – intensify the effects of alcohol, drugs, and some medications by causing fatigue, which in turn impairs a boater’s  balance, coordination, and reaction time.

•    As blood alcohol concentration goes up, the ability to process information, assess dangerous situations, and exercise sound judgment becomes increasingly difficult.

•    Peripheral vision, depth perception, night vision, focus, and the ability to distinguish colors (particularly red and green) are reduced.

•    Finally, alcohol reduces inhibitions and brings on a false sensation of physical warmth, which could cause a person to enter and/or remain in cold water until hypothermia sets in.

With these impairments, accidents are more likely and more deadly for both passengers and boat operators.  Alcohol is a factor in nearly 1 in 5 recreational boating fatalities; U.S. Coast Guard data show that in more than half of these the victims capsized their boats or simply fell overboard.

How Marine Law Enforcement Officers Determine BUI

Most BUI enforcement includes boarding a vessel.  Stops may be for safety checks, light violations, or causing a wake in a no-wake zone, but they typically follow observation of the vessel and then contact and observation of the boat operator.  Based on these observations, the boarding officer may elect to administer the Standardized Field Sobriety Tests to determine if the individual is under the influence of alcohol or drugs.

The Standardized Field Sobriety Tests employ a battery of exercises to determine whether or not a boat operator is intoxicated.  Some tests may require the subject to concentrate on more than one thing at a time; for example, dividing the subject's attention between mental and physical tasks. Studies have shown that a person who is under the influence of alcohol or drugs may be able to perform one of these tasks but rarely both.   Operators who are intoxicated are likely to make certain predictable errors.

Ashore tests are usually administered after a 15-minute wait, with the individual kept under constant observation.  These ashore tests include the one-leg stand, the walk and turn and the Horizontal Gaze Nystagmus (HGN), in which the officer asks an individual to look at and follow with their eyes an object that is moved from side to side.  The National Highway Traffic Safety Administration (NHTSA) had already validated these tests for shore use.  The HGN was the only one validated by the Coast Guard for use afloat.

Other previously validated (by the Coast Guard) afloat tests include:

1. The Alphabet Test
2. The 25 to 1 Count
3. The Finger Count
4. The Palm Pat
5. The Finger to Nose

The Southern California Research Institute’s study will change the afloat test procedures – adding a new test and re-validating an old one – and the Coast Guard, in partnership with NASBLA, has a national training and implementation plan in development.

Combined with chemical tests using blood, breath, and urine samples., these validated ashore and afloat tests give marine law enforcement officers an impressive arsenal in their ongoing efforts to enforce BUI laws.

For more on the risks of boating under the influence, check out this video with Keith Colburn of TV's The Deadliest Catch.

* * * * *

The U.S. Coast Guard is asking all boat owners and operators to help reduce fatalities, injuries, property damage, and associated healthcare costs related to recreational boating accidents by taking personal responsibility for their own safety and the safety of their passengers. Essential steps include: wearing a life jacket at all times and requiring passengers to do the same; never boating under the influence (BUI); successfully completing a boating safety course; and getting a Vessel Safety Check (VSC) annually from local U.S. Coast Guard Auxiliary, United States Power Squadrons(r), or your state boating agency's Vessel Examiners. The U.S. Coast Guard reminds all boaters to "Boat Responsibly!" For more tips on boating safety, visit www.uscgboating.org.

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