The primary strength of the Austin Police Department’s efforts are attributable to having a special unit of officers dedicated to DWI enforcement. This practice allows those officers to increase their detection and roadside assessment skills and to become more confident in their abilities. As a consequence, officers who serve in the DWI Unit are more likely to interpret SFST results in strict adherence to the NHTSA guidelines and to make correct arrests decisions that other officers might not make, especially in borderline cases. Officers of the DWI Unit also become familiar with the judicial process and comfortable providing testimony in court. DWI Unit officers testify frequently and from this experience learn which aspects of the arrest process that defense attorneys are likely to challenge. The officers convey this information to their colleagues and adjust the established operating procedures, when necessary. Additional strengths are summarized below.
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Judicial Issues
Work with prosecutors and judges. Advise them that their DWI case loads will increase dramatically as a result of a special enforcement program. After that, educate the judicial personnel about impaired driving issues and the enforcement effort. Begin with information about the SFSTs and DWI detection, then move to discussion of other drugs and medications that impair driving.
SFSTs and DWI Detection
The NHTSA’s DWI Detection guidelines and the SFSTs must be the central components of the DWI enforcement program. The agency’s managers must support the use of the SFST battery to help officers make roadside arrest decisions. Like many members of the public and judicial personnel, law enforcement managers might not fully understand the systematic procedures that have been developed by NHTSA. Some judicial personnel and law enforcement managers will require education concerning alcohol and other drugs that impair driving performance.
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Training
Officers selected for special duty with a DWI unit must be willing to seek continuing education and training to preserve their understanding of procedures and case law regarding DWI detection and the SFSTs. A well-trained and disciplined DWI unit will quickly earn a reputation for professionalism and reliability among judges, prosecutors, and even defense attorneys.
Officer Motivation
Managers of the Austin Police Department allow the members of the DWI Enforcement Unit to use their patrol vehicles for transportation between shifts. This unusual privilege recognizes the importance of the officers’ special duty, mitigates the burden imposed by lengthy and inconvenient court appearances, and contributes to general awareness of the special enforcement program by exposing the public to patrol vehicles announcing “DWI Enforcement” during daylight hours.
Evidence of Program Effects
A recent NHTSA study of the Austin Police Department’s DWI Unit found that the number of DWI arrests made by the department doubled as a consequence of the reassignment of general patrol personnel and the command emphasis on impaired driving enforcement. The authors of the report also suggest that the 25 percent decrease in alcohol-involved fatal crashes in Austin between 1997 and 2001, and the 10 percent increase in the conviction rate during the same period are attributable to the special enforcement efforts of the APD’s DWI Unit.
| Changes Attributed to DWI Unit Between 1998 and 2001 |
| DWI Arrests | +100% |
| Drivers in Fatal Alcohol-Involved Crashes | -25% |
| DWI Conviction Rate | +10% |
Source: Wiliszowski, C.W. and Jones, R.K, Evaluation of the Austin Police Department DWI Enforcement Unit, National Highway Traffic Safety Administration, Washington, DC, DOT-HS-809-641, 2003.
