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Driving under the influence

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For the legal definition, see Drug–impaired driving. For driving under the influence of alcohol specifically, see Drunk driving.
"DUI" and "DWI" redirect here. For other uses, see DUI (disambiguation) and DWI (disambiguation).

1937 poster warning U.S. drivers against drunk driving

Driving under the influence (DUI) is the offense of driving, operating, or being in control of a vehicle while impaired by alcohol or drugs (including recreational drugs and those prescribed by physicians), to a level that renders the driver incapable of operating a motor vehicle safely.[1] Multiple other terms are used for the offense in various jurisdictions.

Terminology

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The name of the offense varies from jurisdiction to jurisdiction and from legal to colloquial terminology. In various jurisdictions the offense is termed "driving under the influence" [of alcohol or other drugs] (DUI), "driving under the influence of intoxicants" (DUII), "driving while impaired" (DWI), "impaired driving", "driving while intoxicated" (DWI), "impaired driving", "operating while intoxicated" (OWI), "operating under the influence" (OUI), "operating [a] vehicle under the influence" (OVI), "drunk in charge", or "over the prescribed limit" (OPL) (in the UK). Alcohol-related DUI is referred to as "drunk driving", "drunken driving", or "drinking and driving" (US), or "drink-driving" (UK/Ireland/Australia). Cannabis-related DUI may be termed "driving high", and more generally drug-related DUI may be referred to as "drugged driving", "driving under the influence of drugs" (DUID), or "drug-impaired driving".[citation needed]

In the United States, the specific criminal offense is usually called driving under the influence, but states may use other names for the offense including "driving while intoxicated" (DWI), "operating while impaired" (OWI) or "operating while ability impaired", and "operating a vehicle under the influence" (OVI).[2]

Definition

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In typical usage of the terms DUI, DWI, OWI, and OVI, the offense consists of driving a vehicle while affected by alcohol or drugs.[3][4] However, in the majority of US states, the criminal offense may not involve actual driving of the vehicle but rather may broadly include operating or being physically in control of a motor vehicle while under the influence, even if the person charged is not in the act of driving.[5][6] For example, individuals found in the driver's seat of a car while intoxicated and holding the car keys, even while parked, may be charged with DUI because they are in control of the vehicle.[7] In contrast, California only makes it illegal to drive a motor vehicle while under the influence, requiring actual "driving". "The distinction between these two terms is material, for it is generally held that the word 'drive,' as used in statutes of this kind, usually denotes movement of the vehicle in some direction, whereas the word 'operate' has a broader meaning so as to include not only the motion of the vehicle but also acts which engage the machinery of the vehicle that, alone or in sequence, will set in motion the motive power of the vehicle."[8]

Many DUI laws apply also to motorcycling, boating, piloting aircraft, use of mobile farm machinery such as tractors and combines, riding horses or driving a horse-drawn vehicle, bicycling, or skateboarding, possibly with different BAC level than driving.[9][10][11] In some jurisdictions, there are separate charges depending on the vehicle used. In Washington state, for instance, BUI (bicycling under the influence) laws recognize that intoxicated cyclists are likely to primarily endanger themselves. Accordingly, law enforcement officers are empowered only to protect the cyclist by impounding the bicycle rather than filing DUI charges.[12]

George Smith, a London Taxi cab driver, ended up being the first person to be convicted of driving a motor vehicle while intoxicated, on September 10, 1897, under the "drunk in charge" provision of the 1872 Licensing Act. He was fined 25 shillings, which is equivalent to £179 in 2023.[13]

Alcohol

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Table from the 2010 DrugScience study ranking various drugs (legal and illegal) based on statements by drug-harm experts. This study rated alcohol the most harmful drug overall, and the only drug more harmful to others than to the users themselves.[14]
Main article: Drunk driving

Drunk driving (or drink-driving in British English[15]) is the act of driving under the influence of alcohol. A small increase in the blood alcohol content increases the relative risk of a motor vehicle crash.[16] In the United States, alcohol is involved in 30% of all traffic fatalities.[17] It is not known nationally how many people are killed each year in crashes involving drug-impaired drivers because of data limitations,[18] but one study of drivers who were seriously injured in crashes found that 23.6% of drivers were positive for alcohol and 12.2% were positive solely for alcohol.[19]

Other drugs

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For drivers suspected of drug-impaired driving, drug testing screens are typically performed in scientific laboratories so that the results will be admissible in evidence at trial. Due to the overwhelming number of impairing substances that are not alcohol, drugs are classified into different categories for detection purposes. Drug impaired drivers still show impairment during the battery of standardized field sobriety tests, but there are additional tests to help detect drug impaired driving. In the US, one study found that 25.8% of drivers seriously injured in crashes tested positive for cannabinoids, 13.6% tested positive solely for cannabinoids, and 24.6% tested positive for a drug other than alcohol or cannabis.[19]

Recreational drugs

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Drivers who have smoked or otherwise consumed cannabis products such as marijuana or hashish can be charged and convicted of impaired driving in some jurisdictions. A 2011 study in the B.C. Medical Journal stated that there "...is clear evidence that cannabis, like alcohol, impairs the psychomotor skills required for safe driving." The study stated that while "[c]annabis-impaired drivers tend to drive more slowly and cautiously than drunk drivers,... evidence shows they are also more likely to cause accidents than drug and alcohol-free drivers".[20] A more recent 2023 study found that when compared to alcohol, "the impairment effect of marijuana on driving is relatively mild" since drivers using cannabis "drive slower, avoid overtaking other vehicles, and increase following distances."[21] In Canada, police forces such as the Royal Canadian Mounted Police have "...specially trained drug recognition and evaluation [DRE] officers... [who] can detect whether or not a driver is drug impaired, by putting suspects through physical examinations and co-ordination tests.[20] In 2014, in the Canadian province of Ontario, Bill 31, the Transportation Statute Law Amendment Act, was introduced to the provincial legislature. Bill 31 contains driver's license "...suspensions for those caught driving under the influence of drugs, or a combination of drugs and alcohol.[22] Ontario police officers "...use Standard Field Sobriety Tests (SFSTs) and drug recognition evaluations to determine whether the officer believes the driver is under the influence of drugs."[22] In the province of Manitoba, an "...officer can issue a physical coordination test. In B.C., the officer can further order a drug recognition evaluation by an expert, which can be used as evidence of drug use to pursue further charges."[22]

In the US state of Colorado, the state government indicates that "[a]ny amount of marijuana consumption puts you at risk of driving impaired." Colorado law states that "drivers with five nanograms of active tetrahydrocannabinol (THC) in their whole blood can be prosecuted for driving under the influence (DUI). However, no matter the level of THC, law enforcement officers base arrests on observed impairment." In Colorado, if consumption of marijuana is impairing your ability to drive, "it is illegal for you to be driving, even if that substance is prescribed [by a doctor] or legally acquired."[23]

Prescription medications

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Prescription medications such as opioids and benzodiazepines often cause side effects such as excessive drowsiness, and, in the case of opioids, nausea.[24] Other prescription drugs including antiepileptics and antidepressants are now also believed to have the same effect.[25] In the last ten years, there has been an increase in motor vehicle crashes, and it is believed that the use of impairing prescription drugs has been a major factor.[25] Workers are expected to notify their employer when prescribed such drugs to minimize the risk of motor vehicle crashes while at work.[citation needed]

If a worker who drives has a health condition which can be treated with opioids, then that person's doctor should be told that driving is a part of the worker's duties and the employer should be told that the worker could be treated with opioids.[26] Workers should not use impairing substances while driving or operating heavy machinery like forklifts or cranes.[26] If the worker is to drive, then the health care provider should not give them opioids.[26] If the worker is to take opioids, then their employer should assign them work which is appropriate for their impaired state and not encourage them to use safety sensitive equipment.[27]

Testing

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Field sobriety testing

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Main article: Field sobriety testing

Field sobriety tests are a battery of tests used by police officers to determine if a person suspected of impaired driving is intoxicated with alcohol or other drugs. FSTs are primarily used in the United States, to meet "probable cause for arrest" requirements (or the equivalent), necessary to sustain a DWI or DUI conviction based on a chemical blood alcohol test. In the US, field sobriety tests are voluntary; however, some states mandate commercial drivers accept preliminary breath tests (PBT).[citation needed]

Drug Evaluation and Classification program

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The Drug Evaluation and Classification program is designed to detect a drug impaired driver and classify the categories of drugs present in his or her system. The procedures are used post-arrest to gather evidence for trial, rather than for probable cause, as they would be difficult to conduct at the scene.[28]

Initially developed by the Los Angeles, California, Police Department in the 1970s, the DEC program breaks down detection into a twelve-step process that a government-certified Drug Recognition Expert (DRE) can use to determine the category or categories of drugs that a suspect is impaired by. The twelve steps are:

  1. Breath Alcohol Test
  2. Interview with arresting officer (who notes slurred speech, alcohol on breath, etc.)
  3. Preliminary evaluation
  4. Evaluation of the eyes
  5. Psychomotor tests
  6. Vital signs
  7. Dark room examinations
  8. Muscle tone
  9. Injection sites (for injection of heroin or other drugs)
  10. Interrogation of suspect
  11. Opinion of the evaluator
  12. Toxicological examination[29]

DREs are qualified to offer expert testimony in court that pertains to impaired driving on drugs.

The DEC program is recognized by all fifty states in the U.S., Canada, and the United Kingdom and DRE training in the use of the twelve-step [MS1] process is scientifically validated by both laboratory and field studies.[30]

Testing for cannabis

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U.S. states prohibit the operation of a motor vehicle while under the influence of drugs, including marijuana.[31] For example, in Illinois it is illegal to operate a motor vehicle with a THC level of 5 nanograms or more per milliliter of whole blood or 10 nanograms or more per milliliter of other bodily substances.[32] Under that law, an individual can be arrested for driving under influence of cannabis at any THC level, including under the per se legal limits if an Officer believes the individual is impaired by cannabis.[32]

It can be important to perform testing soon after a traffic stop, as THC plasma levels decline significantly after the passage of one or two hours.[33] A number of companies are developing roadside THC breathalyzers that may be used by the police to help identify drivers impaired by the use of marijuana. Some nations use saliva swabs to test for THC levels at roadside, but questions remain about the reliability of saliva testing.[34]

Other charges

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Child endangerment

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In the US state of Colorado, impaired drivers may be charged with child endangerment if they are arrested for DUI with minor children in the vehicle.[35]

Wet reckless

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"Wet reckless" is a term used informally when a driver takes a plea bargain, agreeing to plead guilty to reckless driving in exchange for the elimination of the drunk driving charge.[36] In California, a driver may not be charged or arrested for "wet reckless" driving, and the sole function of the charge is as a possible disposition following a plea bargain for a driver charged with DUI.[37]

Penalties

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In the case of a crash, car insurance may be automatically declared invalid for the intoxicated driver; the drunk driver would be fully responsible for damages. In the American system, a citation for driving under the influence also causes a major increase in car insurance premiums.[38]

The German model serves to reduce the number of crashes by identifying unfit drivers and revoking their licenses until their fitness to drive has been established again. The medical-psychological assessment works for a prognosis of the fitness for drive in future, has an interdisciplinary basic approach, and offers the chance of individual rehabilitation to the offender.[39]

Laws by country

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Further information: Drunk driving § Laws by country, and Drug-impaired driving

The laws relating to DUI vary significantly between countries, particularly the thresholds at which a person is charged with a crime. In many countries, sobriety checkpoints (roadblocks of police cars where drivers are checked), driver's licence suspensions, fines, and prison sentences for DUI offenders are used as part of an effort to deter impaired driving. In addition, many countries have prevention campaigns that use advertising to make people aware of the danger of driving while impaired and the potential fines and criminal charges, discourage impaired driving, and encourage drivers to take taxis or public transport home after using alcohol or other drugs. In some jurisdictions, a bar or restaurant that serves an impaired driver may face civil liability for injuries caused by that driver. In some countries, non-profit advocacy organizations, a well-known example being Mothers Against Drunk Driving (MADD) run their own publicity campaigns against drunk or impaired driving.[citation needed]

US federal regulation

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The United States Department of Transportation (USDOT) regulates many occupations and industries, and has a zero tolerance policy pertaining to the use of cannabis for any regulated employee whether he or she is on-duty or off-duty. Regardless of any State's DUI Statutes and DMV Administrative Penalties, a Commercial Driver's License "CDL" holder will have his or her CDL suspended for 1-year for a DUI arrest and will have his or her CDL revoked for life if they are subsequently arrested for driving impaired.[32]

See also

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References

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  1. ^ Walsh, J. Michael; Gier, Johan J.; Christopherson, Asborg S.; Verstraete, Alain G. (11 August 2010). "Drugs and Driving". Traffic Injury Prevention. 5 (3): 241–253. doi:10.1080/15389580490465292. PMID 15276925. S2CID 23160488.
  2. ^ Wanberg, Kenneth W.; Milkman, Harvey B.; Timkin, David S. (3 December 2004). Driving With Care:Education and Treatment of the Impaired Driving Offender-Strategies for Responsible Living: The Provider's Guide (1 ed.). Thousand Oaks, Calif.: SAGE Publications, Inc. p. 14. ISBN 9781412905961.
  3. ^ "driving under the influence". Cambridge English Dictionary. Retrieved 14 July 2024.
  4. ^ "DUI | the crime of driving a vehicle while drunk also: a person who is arrested for driving a vehicle while drunk". Merriam-webster.com. Archived from the original on 7 April 2023. Retrieved 29 September 2015.
  5. ^ Voas, Robert B.; Lacey, John H. (1989). Issues in the enforcement of impaired driving laws in the United States (PDF). Surgeon General’s Workshop on Drunk Driving. Rockville, MD: Office of the Surgeon General, U.S. Department of Health and Human Services. pp. 136–156. CiteSeerX 10.1.1.553.1031.
  6. ^ Tekenos-Levy, Jordan (29 July 2015). "Impaired Driving in Canada: Cost and Effect of a Conviction". National College for DUI Defense. Archived from the original on 1 August 2017. Retrieved 1 August 2017.
  7. ^ Benikov, Alexander Y. (2012). "When Is an Arizona Drunk Driver Not a Driver: Zarogoza and Actual Physical Control". Phoenix Law Review. 6: 565.
  8. ^ State v. Graves (1977) 269 S.C. 356 [237 S.E.2d 584, 586–588, 586. fn. 8].
  9. ^ Rowling, Troy (14 October 2008). "In Mt Isa it's RUI: riding under the influence". Brisbane Times. Archived from the original on 15 October 2008. Retrieved 19 July 2017.
  10. ^ "Pedestrian Safety". Police Department, University of Colorado. Archived from the original on 16 May 2017. Retrieved 19 July 2017. ("[I]f you bicycle while intoxicated you will be held to the same standards as other motorists and may be issued a DUI.")
  11. ^ "Ore. skateboarder collides with van, charged with DUI". Crimesider. CBS News. 13 March 2013. Archived from the original on 7 February 2019. Retrieved 19 July 2017.
  12. ^ McLeod, Ken (11 July 2013). "Bike Law University: Riding Under the Influence". League of American Bicyclists. Archived from the original on 13 February 2023. Retrieved 9 December 2022.
  13. ^ UK Retail Price Index inflation figures are based on data from Clark, Gregory (2017). "The Annual RPI and Average Earnings for Britain, 1209 to Present (New Series)". MeasuringWorth. Retrieved 7 May 2024.
  14. ^ Nutt DJ, King LA, Phillips LD (November 2010). "Drug harms in the UK: a multicriteria decision analysis". Lancet. 376 (9752): 1558–1565. CiteSeerX 10.1.1.690.1283. doi:10.1016/S0140-6736(10)61462-6. PMID 21036393. S2CID 5667719.
  15. ^ "drink-driving". Collins Dictionary. Archived from the original on 24 August 2022. Retrieved 14 December 2021.
  16. ^ "Why drunk drivers may get behind the wheel". Science Daily. 18 August 2010. Archived from the original on 9 November 2020. Retrieved 2 July 2017.
  17. ^ "Alcohol-Impaired Driving". NHTSA. 2018. Archived from the original on 6 March 2023. Retrieved 26 March 2024.
  18. ^ "Impaired Driving: Get the Facts | Transportation Safety | Injury Center | CDC". www.cdc.gov. 19 July 2023. Archived from the original on 26 March 2024. Retrieved 26 March 2024.
  19. ^ a b Thomas FD, Darrah J, Graham L, Berning A, Blomberg R, Finstad K, Griggs C, Crandall M, Schulman C, Kozar R, Lai J, Mohr N, Chenoweth J, Cunningham K, Babu K, Dorfman J, Van Heukelom J, Ehsani J, Fell J, Whitehill J, Brown T, Moore C (December 2022), Alcohol and Drug Prevalence Among Seriously or Fatally Injured Road Users (PDF), National Highway Traffic Safety Administration, DOT HS 813399, archived (PDF) from the original on 26 March 2024, retrieved 26 March 2024
  20. ^ a b "National Post". News.nationalpost.com. Archived from the original on 30 June 2023. Retrieved 2 March 2022.
  21. ^ Chen, Weiwei; French, Michael T. (7 September 2023). "Marijuana legalization and traffic fatalities revisited". Southern Economic Journal. 90 (2): 259–276. doi:10.1002/soej.12657. ISSN 0038-4038. Archived from the original on 11 January 2024. Retrieved 15 January 2024.
  22. ^ a b c "Ontario to bring in stronger punishment for driving under influence of drugs". Ca.news.yahoo.com. 22 October 2014. Archived from the original on 2 March 2022. Retrieved 2 March 2022.
  23. ^ "Marijuana and Driving — Colorado Department of Transportation". Codot.gov. Archived from the original on 15 October 2019. Retrieved 2 March 2022.
  24. ^ Kaye, Adam M. (12 January 2013). "Basic Concepts in Opioid Prescribing and Current Concepts of Opioid-Mediated Effects on Driving". The Ochsner Journal. 13 (4): 525–32. PMC 3865831. PMID 24358001.
  25. ^ a b Sigona, Nicholas (13 October 2014). "Driving Under the Influence, Public Policy, and Pharmacy Practice". Journal of Pharmacy Practice. 28 (1): 119–123. doi:10.1177/0897190014549839. PMID 25312259. S2CID 45295600. Retrieved 16 April 2015.[permanent dead link‍]
  26. ^ a b c American College of Occupational and Environmental Medicine (February 2014), "Five Things Physicians and Patients Should Question", Choosing Wisely: an initiative of the ABIM Foundation, American College of Occupational and Environmental Medicine, archived from the original on 11 September 2014, retrieved 24 February 2014, which cites
    • Weiss, MS; Bowden, K; Branco, F; et al. (2011). "Opioids Guideline". In Kurt T. Hegmann (ed.). Occupational medicine practice guidelines : evaluation and management of common health problems and functional recovery in workers (online March 2014) (3rd ed.). Elk Grove Village, IL: American College of Occupational and Environmental Medicine. p. 11. ISBN 978-0615452272.
  27. ^ "The proactive role employers can take: Opioids in the Workplace" (PDF). National Safety Council. Archived from the original (PDF) on 10 May 2017. Retrieved 1 August 2017.
  28. ^ "DRUG EVALUATION AND CLASSIFICATION TRAINING - ADMINISTRATOR'S GUIDE" (PDF). January 2011. Archived (PDF) from the original on 27 March 2024. Retrieved 27 March 2024.
  29. ^ Drug Evaluation and Classification Program. NHTSA. pp. Sev IV Pg. 5–6.
  30. ^ "Drug Evaluation and Classification Program (DECP) Annual Report 2018" (PDF). International Association of Chiefs of Police. Archived (PDF) from the original on 28 February 2023. Retrieved 1 December 2022.
  31. ^ Walsh, J. Michael (2009). "A State-by-State Analysis of Laws Dealing With Driving Under the Influence of Drugs" (PDF). ems.gov. NHTSA. Archived from the original (PDF) on 13 November 2020. Retrieved 9 October 2021.
  32. ^ a b c "Archived copy" (PDF). Archived from the original (PDF) on 4 October 2021. Retrieved 9 October 2021.{{cite web}}: CS1 maint: archived copy as title (link)
  33. ^ "Marijuana-Impaired Driving : A Report to Congress" (PDF). Nhtsa.gov. Archived (PDF) from the original on 8 March 2022. Retrieved 2 March 2022.
  34. ^ Smith, Aaron (26 May 2017). "These companies are racing to develop a Breathalyzer for pot". Money.cnn.com. Archived from the original on 1 August 2017. Retrieved 1 August 2017.
  35. ^ "Child Endangerment Drunk Driving Laws" (PDF). MADD. Archived from the original (PDF) on 29 March 2017. Retrieved 1 August 2017.
  36. ^ "wet reckless". LII / Legal Information Institute. Archived from the original on 27 March 2023. Retrieved 10 May 2023.
  37. ^ Graham, Kyle (2011). "Facilitating Crimes: An Inquiry into the Selective Invocation of Offenses within the Continuum of Criminal Procedures". Lewis & Clark Law Review. 15: 667.
  38. ^ Tchir, Jason (10 June 2014). "How an impaired driving conviction can affect your car insurance rates". Globe and Mail. Archived from the original on 14 May 2017. Retrieved 1 August 2017.
  39. ^ "The Medical Psychological Assessment: An Opportunity for the Individual, Safety for the Genera Public" (PDF). Archived from the original (PD) on 8 February 2012. Retrieved 10 October 2012.

Further reading

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